diff --git a/.gitignore b/.gitignore
index c84f3c4d..9b410116 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,6 @@ config/*
 system/*
 logic/solutions/jetbrains.mps.logic.reactor/lib/*
 logic/solutions/jetbrains.mps.logic.test/lib/*
-typechecking/solutions/jetbrains.mps.typechecking.ui/lib/*
+typechecking/solutions/jetbrains.mps.typechecking/lib/*
 MPS_HOME
 TEST-*
diff --git a/.mps/modules.xml b/.mps/modules.xml
index 26fb7412..d23ef1ad 100644
--- a/.mps/modules.xml
+++ b/.mps/modules.xml
@@ -14,6 +14,7 @@
       <modulePath path="$PROJECT_DIR$/typechecking/solutions/jetbrains.mps.typechecking.sample/jetbrains.mps.typechecking.sample.msd" folder="typechecking.sample" />
       <modulePath path="$PROJECT_DIR$/typechecking/solutions/jetbrains.mps.typechecking.test/jetbrains.mps.lang.typechecking.test.msd" folder="typechecking" />
       <modulePath path="$PROJECT_DIR$/typechecking/solutions/jetbrains.mps.typechecking.ui/jetbrains.mps.typechecking.ui.msd" folder="typechecking.plugin" />
+      <modulePath path="$PROJECT_DIR$/typechecking/solutions/jetbrains.mps.typechecking/jetbrains.mps.typechecking.msd" folder="typechecking" />
       <modulePath path="$PROJECT_DIR$/typesystem2/languages/jetbrains.mps.lang.smodel.types/jetbrains.mps.lang.smodel.types.mpl" folder="typesystem2" />
       <modulePath path="$PROJECT_DIR$/typesystem2/languages/jetbrains.mps.lang.typesystem2/jetbrains.mps.lang.typesystem2.mpl" folder="typesystem2" />
       <modulePath path="$PROJECT_DIR$/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/jetbrains.mps.lang.typesystem2.runtime.msd" folder="typesystem2" />
@@ -21,4 +22,4 @@
       <modulePath path="$PROJECT_DIR$/typesystem2/solutions/jetbrains.mps.lang.typesystem2.template/jetbrains.mps.lang.typesystem2.template.msd" folder="typesystem2" />
     </projectModules>
   </component>
-</project>
+</project>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index bd3d8fcc..80b935ae 100644
--- a/build.gradle
+++ b/build.gradle
@@ -63,7 +63,7 @@ def allInitDependencies = [
   'installMps',
   'logic/solutions/jetbrains.mps.logic.reactor:copyDependencies',
   'logic/solutions/jetbrains.mps.logic.test:copyDependencies',
-  'typechecking/solutions/jetbrains.mps.typechecking.ui:copyDependencies' ]
+  'typechecking/solutions/jetbrains.mps.typechecking:copyDependencies' ]
 
 task init(dependsOn: allInitDependencies) {
   doLast {
diff --git a/build.xml b/build.xml
index f71e94da..ca17eabc 100644
--- a/build.xml
+++ b/build.xml
@@ -442,6 +442,51 @@
       <zipfileset file="${basedir}/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/jetbrains.mps.lang.typesystem2.helper.msd" prefix="module" />
       <zipfileset dir="${build.tmp}/customProcessors/copyModels/typesystem2-solutions-jetbrains.mps.lang.typesystem2.helper-models" prefix="module/models" />
     </jar>
+    <mkdir dir="${build.tmp}/default/jetbrains.mps.typechecking.jar" />
+    <mkdir dir="${build.tmp}/default/jetbrains.mps.typechecking.jar/META-INF" />
+    <echoxml file="${build.tmp}/default/jetbrains.mps.typechecking.jar/META-INF/module.xml">
+      <module namespace="jetbrains.mps.typechecking" type="solution" uuid="6998f568-f0e9-473b-b4a8-9efb6499fc8d">
+        <dependencies>
+          <module ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)" />
+          <module ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)" />
+          <module ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)" />
+          <module ref="4c6a28d1-2c60-478d-b36e-db9b3cbb21fb(closures.runtime)" />
+          <module ref="9b80526e-f0bf-4992-bdf5-cee39c1833f3(collections.runtime)" />
+          <module ref="a3e4657f-a76c-45bb-bbda-c764596ecc65(jetbrains.mps.baseLanguage.logging.runtime)" />
+          <module ref="d44dab97-aaac-44cb-9745-8a14db674c03(jetbrains.mps.baseLanguage.tuples.runtime)" />
+          <module ref="2d3c70e9-aab2-4870-8d8d-6036800e4103(jetbrains.mps.kernel)" />
+          <module ref="d936855b-48da-4812-a8a0-2bfddd633ac5(jetbrains.mps.lang.behavior.api)" />
+          <module ref="d936855b-48da-4812-a8a0-2bfddd633ac4(jetbrains.mps.lang.behavior.runtime)" />
+          <module ref="9a4afe51-f114-4595-b5df-048ce3c596be(jetbrains.mps.runtime)" />
+        </dependencies>
+        <library jar="lib/reactive-streams-1.0.0.final.jar" />
+        <library jar="lib/rxjava-2.1.1.jar" />
+        <library jar="lib/rxjava2-swing-0.2.1.jar" />
+        <classpath>
+          <entry path="." />
+        </classpath>
+        <sources jar="jetbrains.mps.typechecking-src.jar" descriptor="jetbrains.mps.typechecking.msd" />
+      </module>
+    </echoxml>
+    <jar destfile="${build.layout}/tests/jetbrains.mps.typechecking.jar" duplicate="preserve">
+      <fileset dir="${build.tmp}/java/out/jetbrains.mps.typechecking" />
+      <fileset dir="${basedir}/typechecking/solutions/jetbrains.mps.typechecking" includes="icons/**, resources/**" />
+      <fileset dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/source_gen" includes="**/trace.info, **/exports, **/*.mps, **/checkpoints" />
+      <fileset dir="${build.tmp}/default/jetbrains.mps.typechecking.jar" />
+    </jar>
+    <copyModels todir="${build.tmp}/customProcessors/copyModels/typechecking-solutions-jetbrains.mps.typechecking-models">
+      <fileset dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/models" includes="**/*.mps, **/*.metadata, **/*.history, **/*.mpsr, **/.model" />
+    </copyModels>
+    <jar destfile="${build.layout}/tests/jetbrains.mps.typechecking-src.jar" duplicate="preserve">
+      <fileset dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/source_gen">
+        <exclude name="**/trace.info" />
+        <exclude name="**/exports" />
+        <exclude name="**/checkpoints" />
+        <exclude name="**/*.mps" />
+      </fileset>
+      <zipfileset file="${basedir}/typechecking/solutions/jetbrains.mps.typechecking/jetbrains.mps.typechecking.msd" prefix="module" />
+      <zipfileset dir="${build.tmp}/customProcessors/copyModels/typechecking-solutions-jetbrains.mps.typechecking-models" prefix="module/models" />
+    </jar>
     <mkdir dir="${build.tmp}/default/jetbrains.mps.typechecking.ui.jar" />
     <mkdir dir="${build.tmp}/default/jetbrains.mps.typechecking.ui.jar/META-INF" />
     <echoxml file="${build.tmp}/default/jetbrains.mps.typechecking.ui.jar/META-INF/module.xml">
@@ -461,9 +506,6 @@
           <module ref="d7eb0a2a-bd50-4576-beae-e4a89db35f20(jetbrains.mps.lang.scopes.runtime)" />
           <module ref="9a4afe51-f114-4595-b5df-048ce3c596be(jetbrains.mps.runtime)" />
         </dependencies>
-        <library jar="lib/rxjava-2.1.1.jar" />
-        <library jar="lib/rxjava2-swing-0.2.1.jar" />
-        <library jar="lib/reactive-streams-1.0.0.final.jar" />
         <classpath>
           <entry path="." />
         </classpath>
@@ -828,7 +870,7 @@
       <fileset dir="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib" />
     </copy>
     <copy todir="${build.layout}/tests/lib">
-      <fileset dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib" />
+      <fileset dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib" />
     </copy>
     <mkdir dir="${build.tmp}/default/typechecking-0.1.zip" />
     <mkdir dir="${build.tmp}/default/typechecking-0.1.zip/typechecking" />
@@ -1218,6 +1260,51 @@
       <zipfileset file="${basedir}/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/jetbrains.mps.lang.typesystem2.helper.msd" prefix="module" />
       <zipfileset dir="${build.tmp}/customProcessors/copyModels/typesystem2-solutions-jetbrains.mps.lang.typesystem2.helper-models1" prefix="module/models" />
     </jar>
+    <mkdir dir="${build.tmp}/default/jetbrains.mps.typechecking.jar1" />
+    <mkdir dir="${build.tmp}/default/jetbrains.mps.typechecking.jar1/META-INF" />
+    <echoxml file="${build.tmp}/default/jetbrains.mps.typechecking.jar1/META-INF/module.xml">
+      <module namespace="jetbrains.mps.typechecking" type="solution" uuid="6998f568-f0e9-473b-b4a8-9efb6499fc8d">
+        <dependencies>
+          <module ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)" />
+          <module ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)" />
+          <module ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)" />
+          <module ref="4c6a28d1-2c60-478d-b36e-db9b3cbb21fb(closures.runtime)" />
+          <module ref="9b80526e-f0bf-4992-bdf5-cee39c1833f3(collections.runtime)" />
+          <module ref="a3e4657f-a76c-45bb-bbda-c764596ecc65(jetbrains.mps.baseLanguage.logging.runtime)" />
+          <module ref="d44dab97-aaac-44cb-9745-8a14db674c03(jetbrains.mps.baseLanguage.tuples.runtime)" />
+          <module ref="2d3c70e9-aab2-4870-8d8d-6036800e4103(jetbrains.mps.kernel)" />
+          <module ref="d936855b-48da-4812-a8a0-2bfddd633ac5(jetbrains.mps.lang.behavior.api)" />
+          <module ref="d936855b-48da-4812-a8a0-2bfddd633ac4(jetbrains.mps.lang.behavior.runtime)" />
+          <module ref="9a4afe51-f114-4595-b5df-048ce3c596be(jetbrains.mps.runtime)" />
+        </dependencies>
+        <library jar="../lib/reactive-streams-1.0.0.final-0.7.jar" />
+        <library jar="../lib/rxjava-2.1.1.jar" />
+        <library jar="../lib/rxjava2-swing-0.2.1.jar" />
+        <classpath>
+          <entry path="." />
+        </classpath>
+        <sources jar="jetbrains.mps.typechecking-src.jar" descriptor="jetbrains.mps.typechecking.msd" />
+      </module>
+    </echoxml>
+    <jar destfile="${build.tmp}/default/typechecking-0.1.zip/typechecking/languages/jetbrains.mps.typechecking.jar" duplicate="preserve">
+      <fileset dir="${build.tmp}/java/out/jetbrains.mps.typechecking" />
+      <fileset dir="${basedir}/typechecking/solutions/jetbrains.mps.typechecking" includes="icons/**, resources/**" />
+      <fileset dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/source_gen" includes="**/trace.info, **/exports, **/*.mps, **/checkpoints" />
+      <fileset dir="${build.tmp}/default/jetbrains.mps.typechecking.jar1" />
+    </jar>
+    <copyModels todir="${build.tmp}/customProcessors/copyModels/typechecking-solutions-jetbrains.mps.typechecking-models1">
+      <fileset dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/models" includes="**/*.mps, **/*.metadata, **/*.history, **/*.mpsr, **/.model" />
+    </copyModels>
+    <jar destfile="${build.tmp}/default/typechecking-0.1.zip/typechecking/languages/jetbrains.mps.typechecking-src.jar" duplicate="preserve">
+      <fileset dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/source_gen">
+        <exclude name="**/trace.info" />
+        <exclude name="**/exports" />
+        <exclude name="**/checkpoints" />
+        <exclude name="**/*.mps" />
+      </fileset>
+      <zipfileset file="${basedir}/typechecking/solutions/jetbrains.mps.typechecking/jetbrains.mps.typechecking.msd" prefix="module" />
+      <zipfileset dir="${build.tmp}/customProcessors/copyModels/typechecking-solutions-jetbrains.mps.typechecking-models1" prefix="module/models" />
+    </jar>
     <mkdir dir="${build.tmp}/default/jetbrains.mps.typechecking.ui.jar1" />
     <mkdir dir="${build.tmp}/default/jetbrains.mps.typechecking.ui.jar1/META-INF" />
     <echoxml file="${build.tmp}/default/jetbrains.mps.typechecking.ui.jar1/META-INF/module.xml">
@@ -1237,9 +1324,6 @@
           <module ref="d7eb0a2a-bd50-4576-beae-e4a89db35f20(jetbrains.mps.lang.scopes.runtime)" />
           <module ref="9a4afe51-f114-4595-b5df-048ce3c596be(jetbrains.mps.runtime)" />
         </dependencies>
-        <library jar="../lib/rxjava-2.1.1.jar" />
-        <library jar="../lib/rxjava2-swing-0.2.1.jar" />
-        <library jar="../lib/reactive-streams-1.0.0.final-0.7.jar" />
         <classpath>
           <entry path="." />
         </classpath>
@@ -1348,7 +1432,7 @@
     </jar>
     <zip destfile="${build.layout}/typechecking-0.1.zip">
       <zipfileset dir="${basedir}/logic/solutions/jetbrains.mps.logic.reactor/lib" prefix="typechecking/lib" />
-      <zipfileset dir="${basedir}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib" prefix="typechecking/lib" />
+      <zipfileset dir="${basedir}/typechecking/solutions/jetbrains.mps.typechecking/lib" prefix="typechecking/lib" />
       <fileset dir="${build.tmp}/default/typechecking-0.1.zip" />
     </zip>
     <echo file="${build.layout}/build.properties">mps.build.number=${mps.build.number}${line.separator}mps.date=${mps.date}${line.separator}mps.build.vcs.number=${mps.build.vcs.number}${line.separator}mps.teamcity.buildConfName=${mps.teamcity.buildConfName}${line.separator}mps.idea.platform.build.number=${mps.idea.platform.build.number}${line.separator}mps.mps.build.counter=${mps.mps.build.counter}${line.separator}mpsBootstrapCore.version=${mpsBootstrapCore.version}</echo>
@@ -1365,7 +1449,7 @@
     <delete dir="${build.layout}" />
   </target>
   
-  <target name="compileJava" depends="java.compile.jetbrains.mps.logic, java.compile.jetbrains.mps.logic#6626732309150416985, java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.logic.reactor, java.compile.jetbrains.mps.logic.test, java.compile.jetbrains.mps.lang.typesystem2, java.compile.jetbrains.mps.lang.typesystem2#4578927328670739933, java.compile.java.modules.cycle.1, java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.lang.typesystem2.template, java.compile.jetbrains.mps.lang.typesystem2.helper, java.compile.jetbrains.mps.lang.smodel.types, java.compile.jetbrains.mps.lang.smodel.types#7345257067587611144, java.compile.jetbrains.mps.lang.typechecking.test, java.compile.jetbrains.mps.typechecking.ui, java.compile.jetbrains.mps.typechecking.annotation, java.compile.jetbrains.mps.baseLanguageExt, java.compile.jetbrains.mps.typechecking.sample, java.compile.jetbrains.mps.baseLanguageExt.test, java.compile.jetbrains.mps.typechecking.sample.test" />
+  <target name="compileJava" depends="java.compile.jetbrains.mps.logic, java.compile.jetbrains.mps.logic#6626732309150416985, java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.logic.reactor, java.compile.jetbrains.mps.logic.test, java.compile.jetbrains.mps.lang.typesystem2, java.compile.jetbrains.mps.lang.typesystem2#4578927328670739933, java.compile.java.modules.cycle.1, java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.lang.typesystem2.template, java.compile.jetbrains.mps.lang.typesystem2.helper, java.compile.jetbrains.mps.lang.smodel.types, java.compile.jetbrains.mps.lang.smodel.types#7345257067587611144, java.compile.jetbrains.mps.lang.typechecking.test, java.compile.jetbrains.mps.typechecking, java.compile.jetbrains.mps.typechecking.ui, java.compile.jetbrains.mps.typechecking.annotation, java.compile.jetbrains.mps.baseLanguageExt, java.compile.jetbrains.mps.typechecking.sample, java.compile.jetbrains.mps.baseLanguageExt.test, java.compile.jetbrains.mps.typechecking.sample.test" />
   
   <target name="processResources" />
   
@@ -1473,6 +1557,7 @@
         <module file="${basedir}/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/jetbrains.mps.lang.typesystem2.runtime.msd" />
         <module file="${basedir}/typesystem2/solutions/jetbrains.mps.lang.typesystem2.template/jetbrains.mps.lang.typesystem2.template.msd" />
         <module file="${basedir}/logic/solutions/jetbrains.mps.logic.test/jetbrains.mps.logic.test.msd" />
+        <module file="${basedir}/typechecking/solutions/jetbrains.mps.typechecking/jetbrains.mps.typechecking.msd" />
         <module file="${basedir}/typechecking/solutions/jetbrains.mps.typechecking.ui/jetbrains.mps.typechecking.ui.msd" />
       </chunk>
       <chunk>
@@ -2028,7 +2113,7 @@
     </javac>
   </target>
   
-  <target name="java.compile.jetbrains.mps.lang.smodel.types" depends="java.compile.jetbrains.mps.lang.typesystem2.runtime, fetchDependencies">
+  <target name="java.compile.jetbrains.mps.lang.smodel.types" depends="java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.typechecking, fetchDependencies">
     <mkdir dir="${mps.macro.logic_home}/typesystem2/languages/jetbrains.mps.lang.smodel.types/source_gen" />
     <mkdir dir="${build.tmp}/java/out/jetbrains.mps.lang.smodel.types" />
     <javac destdir="${build.tmp}/java/out/jetbrains.mps.lang.smodel.types" fork="true" encoding="utf8" includeantruntime="false" debug="true">
@@ -2049,11 +2134,16 @@
         <fileset file="${artifacts.mps}/lib/mps-messaging.jar" />
         <fileset file="${artifacts.mps}/lib/mps-boot-util.jar" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.lang.typesystem2.runtime" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.runtime" />
         <fileset file="${artifacts.mps}/lib/mps-editor.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor-api.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor-runtime.jar" />
         <fileset file="${artifacts.mps}/lib/mps-platform.jar" />
         <fileset file="${artifacts.mps}/lib/mps-environment.jar" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava-2.1.1.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava2-swing-0.2.1.jar" />
         <fileset file="${artifacts.mps}/lib/annotations.jar" />
         <fileset file="${artifacts.mps}/lib/log4j.jar" />
         <fileset file="${artifacts.mps}/lib/jdom.jar" />
@@ -2075,7 +2165,7 @@
     </javac>
   </target>
   
-  <target name="java.compile.jetbrains.mps.lang.smodel.types#7345257067587611144" depends="java.compile.jetbrains.mps.lang.smodel.types, java.compile.jetbrains.mps.lang.typesystem2.runtime, fetchDependencies">
+  <target name="java.compile.jetbrains.mps.lang.smodel.types#7345257067587611144" depends="java.compile.jetbrains.mps.lang.smodel.types, java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.typechecking, fetchDependencies">
     <mkdir dir="${mps.macro.logic_home}/typesystem2/languages/jetbrains.mps.lang.smodel.types/generator/source_gen" />
     <mkdir dir="${build.tmp}/java/out/jetbrains.mps.lang.smodel.types#7345257067587611144" />
     <javac destdir="${build.tmp}/java/out/jetbrains.mps.lang.smodel.types#7345257067587611144" fork="true" encoding="utf8" includeantruntime="false" debug="true">
@@ -2102,6 +2192,11 @@
         <fileset file="${artifacts.mps}/lib/mps-environment.jar" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.lang.smodel.types" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.lang.typesystem2.runtime" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.runtime" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava-2.1.1.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava2-swing-0.2.1.jar" />
         <fileset file="${artifacts.mps}/lib/annotations.jar" />
         <fileset file="${artifacts.mps}/lib/log4j.jar" />
         <fileset file="${artifacts.mps}/lib/jdom.jar" />
@@ -2123,7 +2218,7 @@
     </javac>
   </target>
   
-  <target name="java.compile.jetbrains.mps.lang.typechecking.test" depends="java.compile.jetbrains.mps.baseLanguageExt, java.compile.jetbrains.mps.lang.typesystem2.helper, java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.lang.typesystem2.template, java.compile.jetbrains.mps.logic.reactor, java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.typechecking.ui, fetchDependencies">
+  <target name="java.compile.jetbrains.mps.lang.typechecking.test" depends="java.compile.jetbrains.mps.baseLanguageExt, java.compile.jetbrains.mps.lang.typesystem2.helper, java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.lang.typesystem2.template, java.compile.jetbrains.mps.logic.reactor, java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.typechecking, java.compile.jetbrains.mps.typechecking.ui, fetchDependencies">
     <mkdir dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.test/source_gen" />
     <mkdir dir="${build.tmp}/java/out/jetbrains.mps.lang.typechecking.test" />
     <javac destdir="${build.tmp}/java/out/jetbrains.mps.lang.typechecking.test" fork="true" encoding="utf8" includeantruntime="false" debug="true">
@@ -2157,6 +2252,7 @@
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.lang.typesystem2.template" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.reactor" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.runtime" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking.ui" />
         <fileset file="${artifacts.mps}/lib/mps-test.jar" />
         <fileset file="${artifacts.mps}/plugins/mps-testing/lib/jetbrains.mps.lang.test.util.jar" />
@@ -2165,9 +2261,9 @@
         <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/collection-0.7.jar" />
         <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/conreactor-api-0.9.jar" />
         <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/conreactor-core-0.9.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/rxjava-2.1.1.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/rxjava2-swing-0.2.1.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava-2.1.1.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava2-swing-0.2.1.jar" />
         <fileset file="${artifacts.mps}/lib/ant/lib/ant.jar" />
         <fileset file="${artifacts.mps}/lib/junit-4.12.jar" />
         <fileset file="${artifacts.mps}/lib/hamcrest-core-1.3.jar" />
@@ -2201,7 +2297,61 @@
     </javac>
   </target>
   
-  <target name="java.compile.jetbrains.mps.typechecking.ui" depends="java.compile.jetbrains.mps.lang.typesystem2.helper, java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.lang.typesystem2.template, java.compile.jetbrains.mps.logic.reactor, java.compile.jetbrains.mps.logic.runtime, fetchDependencies">
+  <target name="java.compile.jetbrains.mps.typechecking" depends="java.compile.jetbrains.mps.lang.typesystem2.helper, java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.lang.typesystem2.template, java.compile.jetbrains.mps.logic.reactor, java.compile.jetbrains.mps.logic.runtime, fetchDependencies">
+    <mkdir dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/source_gen" />
+    <mkdir dir="${build.tmp}/java/out/jetbrains.mps.typechecking" />
+    <javac destdir="${build.tmp}/java/out/jetbrains.mps.typechecking" fork="true" encoding="utf8" includeantruntime="false" debug="true">
+      <compilerarg value="-Xlint:none" />
+      <src>
+        <path location="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/source_gen" />
+      </src>
+      <classpath>
+        <fileset file="${artifacts.mps}/lib/mps-behavior-api.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-behavior-runtime.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-closures.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-collections.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-annotations.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-openapi.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-core.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-logging.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-tuples.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-messaging.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-boot-util.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-editor.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-editor-api.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-editor-runtime.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-platform.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-environment.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-icons.jar" />
+        <fileset file="${artifacts.mps}/lib/mps-workbench.jar" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.lang.typesystem2.helper" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.lang.typesystem2.runtime" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.lang.typesystem2.template" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.reactor" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.runtime" />
+        <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/kotlin-runtime-1.1.2.jar" />
+        <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/kotlin-stdlib-1.1.2.jar" />
+        <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/collection-0.7.jar" />
+        <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/conreactor-api-0.9.jar" />
+        <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/conreactor-core-0.9.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava-2.1.1.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava2-swing-0.2.1.jar" />
+        <fileset file="${artifacts.mps}/lib/annotations.jar" />
+        <fileset file="${artifacts.mps}/lib/log4j.jar" />
+        <fileset file="${artifacts.mps}/lib/jdom.jar" />
+        <fileset file="${artifacts.mps}/lib/trove4j.jar" />
+        <fileset file="${artifacts.mps}/lib/ecj-4.6.2.jar" />
+        <fileset dir="${artifacts.mps}/lib" includes="*.jar" />
+        <fileset file="${artifacts.mps}/languages/baseLanguage/jetbrains.mps.baseLanguage.logging.runtime.jar" />
+        <fileset file="${artifacts.mps}/languages/languageDesign/jetbrains.mps.lang.core.jar" />
+        <fileset file="${artifacts.mps}/languages/languageDesign/jetbrains.mps.lang.scopes.runtime.jar" />
+        <fileset file="${artifacts.mps}/languages/languageDesign/jetbrains.mps.lang.structure.jar" />
+      </classpath>
+    </javac>
+  </target>
+  
+  <target name="java.compile.jetbrains.mps.typechecking.ui" depends="java.compile.jetbrains.mps.lang.typesystem2.helper, java.compile.jetbrains.mps.lang.typesystem2.runtime, java.compile.jetbrains.mps.lang.typesystem2.template, java.compile.jetbrains.mps.logic.reactor, java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.typechecking, fetchDependencies">
     <mkdir dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/source_gen" />
     <mkdir dir="${build.tmp}/java/out/jetbrains.mps.typechecking.ui" />
     <javac destdir="${build.tmp}/java/out/jetbrains.mps.typechecking.ui" fork="true" encoding="utf8" includeantruntime="false" debug="true">
@@ -2233,14 +2383,15 @@
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.lang.typesystem2.template" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.reactor" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.runtime" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking" />
         <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/kotlin-runtime-1.1.2.jar" />
         <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/kotlin-stdlib-1.1.2.jar" />
         <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/collection-0.7.jar" />
         <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/conreactor-api-0.9.jar" />
         <fileset file="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.reactor/lib/conreactor-core-0.9.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/rxjava-2.1.1.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/rxjava2-swing-0.2.1.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava-2.1.1.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava2-swing-0.2.1.jar" />
         <fileset file="${artifacts.mps}/lib/annotations.jar" />
         <fileset file="${artifacts.mps}/lib/log4j.jar" />
         <fileset file="${artifacts.mps}/lib/jdom.jar" />
@@ -2248,9 +2399,7 @@
         <fileset file="${artifacts.mps}/lib/ecj-4.6.2.jar" />
         <fileset dir="${artifacts.mps}/lib" includes="*.jar" />
         <fileset file="${artifacts.mps}/languages/baseLanguage/jetbrains.mps.baseLanguage.logging.runtime.jar" />
-        <fileset file="${artifacts.mps}/languages/languageDesign/jetbrains.mps.lang.core.jar" />
         <fileset file="${artifacts.mps}/languages/languageDesign/jetbrains.mps.lang.scopes.runtime.jar" />
-        <fileset file="${artifacts.mps}/languages/languageDesign/jetbrains.mps.lang.structure.jar" />
       </classpath>
     </javac>
   </target>
@@ -2441,7 +2590,7 @@
     </javac>
   </target>
   
-  <target name="java.compile.jetbrains.mps.typechecking.sample.test" depends="java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.typechecking.sample, java.compile.jetbrains.mps.typechecking.ui, fetchDependencies">
+  <target name="java.compile.jetbrains.mps.typechecking.sample.test" depends="java.compile.jetbrains.mps.logic.runtime, java.compile.jetbrains.mps.typechecking, java.compile.jetbrains.mps.typechecking.sample, java.compile.jetbrains.mps.typechecking.ui, fetchDependencies">
     <mkdir dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.sample.test/source_gen" />
     <mkdir dir="${build.tmp}/java/out/jetbrains.mps.typechecking.sample.test" />
     <javac destdir="${build.tmp}/java/out/jetbrains.mps.typechecking.sample.test" fork="true" encoding="utf8" includeantruntime="false" debug="true">
@@ -2463,20 +2612,21 @@
         <fileset file="${artifacts.mps}/lib/mps-messaging.jar" />
         <fileset file="${artifacts.mps}/lib/mps-boot-util.jar" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.logic.runtime" />
-        <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking.sample" />
         <fileset file="${artifacts.mps}/lib/mps-editor.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor-api.jar" />
         <fileset file="${artifacts.mps}/lib/mps-editor-runtime.jar" />
         <fileset file="${artifacts.mps}/lib/mps-platform.jar" />
         <fileset file="${artifacts.mps}/lib/mps-environment.jar" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking" />
+        <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking.sample" />
         <fileset file="${artifacts.mps}/lib/mps-icons.jar" />
         <fileset file="${artifacts.mps}/lib/mps-workbench.jar" />
         <pathelement path="${build.tmp}/java/out/jetbrains.mps.typechecking.ui" />
         <fileset file="${artifacts.mps}/lib/mps-test.jar" />
         <fileset file="${artifacts.mps}/plugins/mps-testing/lib/jetbrains.mps.lang.test.util.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/rxjava-2.1.1.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/rxjava2-swing-0.2.1.jar" />
-        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/reactive-streams-1.0.0.final.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava-2.1.1.jar" />
+        <fileset file="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/lib/rxjava2-swing-0.2.1.jar" />
         <fileset file="${artifacts.mps}/lib/ant/lib/ant.jar" />
         <fileset file="${artifacts.mps}/lib/junit-4.12.jar" />
         <fileset file="${artifacts.mps}/lib/hamcrest-core-1.3.jar" />
@@ -2588,6 +2738,7 @@
       <pathelement location="${build.layout}/tests/jetbrains.mps.logic.jar" />
       <pathelement location="${build.layout}/tests/jetbrains.mps.logic.reactor.jar" />
       <pathelement location="${build.layout}/tests/jetbrains.mps.logic.runtime.jar" />
+      <pathelement location="${build.layout}/tests/jetbrains.mps.typechecking.jar" />
       <pathelement location="${build.layout}/tests/jetbrains.mps.typechecking.sample.jar" />
       <pathelement location="${build.layout}/tests/jetbrains.mps.typechecking.ui.jar" />
     </path>
@@ -2668,6 +2819,7 @@
     <delete dir="${mps.macro.logic_home}/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/source_gen" />
     <delete dir="${mps.macro.logic_home}/typesystem2/solutions/jetbrains.mps.lang.typesystem2.template/source_gen" />
     <delete dir="${mps.macro.logic_home}/logic/solutions/jetbrains.mps.logic.test/source_gen" />
+    <delete dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking/source_gen" />
     <delete dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.typechecking.ui/source_gen" />
     <delete dir="${mps.macro.logic_home}/typechecking/languages/jetbrains.mps.baseLanguageExt/source_gen" />
     <delete dir="${mps.macro.logic_home}/typechecking/solutions/jetbrains.mps.baseLanguageExt.test/source_gen" />
diff --git a/settings.gradle b/settings.gradle
index 97485eef..fbc5af46 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,3 +1,3 @@
 include 'logic/solutions/jetbrains.mps.logic.reactor'
 include 'logic/solutions/jetbrains.mps.logic.test'
-include 'typechecking/solutions/jetbrains.mps.typechecking.ui'
+include 'typechecking/solutions/jetbrains.mps.typechecking'
diff --git a/typechecking/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps b/typechecking/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
index 9341be87..27f7db48 100644
--- a/typechecking/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
+++ b/typechecking/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
@@ -31,7 +31,7 @@
     <import index="oy3s" ref="r:a6030cee-34eb-4503-b1bf-015fe5cd8c1a(jetbrains.mps.logic.builtin.unification)" />
     <import index="cxk7" ref="r:daa544a7-0a5c-49c0-a54c-4c2a5b4868aa(jetbrains.mps.logic.builtin.predicate)" />
     <import index="av0y" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.program(jetbrains.mps.logic.reactor/)" />
-    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.typechecking)" />
+    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.evaluation)" />
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" implicit="true" />
   </imports>
   <registry>
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.build/models/jetbrains.mps.typechecking.build.mps b/typechecking/solutions/jetbrains.mps.typechecking.build/models/jetbrains.mps.typechecking.build.mps
index c8cc16ff..0b0fb4b3 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.build/models/jetbrains.mps.typechecking.build.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.build/models/jetbrains.mps.typechecking.build.mps
@@ -984,6 +984,12 @@
               <ref role="3bR37D" to="ffeo:7YI57w6K0rx" resolve="jetbrains.mps.lang.smodel#1139186730696" />
             </node>
           </node>
+          <node concept="1SiIV0" id="55Q$YFtvxj6" role="3bR37C">
+            <node concept="3bR9La" id="55Q$YFtvxj7" role="1SiIV1">
+              <property role="3bR36h" value="false" />
+              <ref role="3bR37D" node="65DJywFj0Fi" resolve="jetbrains.mps.typechecking" />
+            </node>
+          </node>
         </node>
       </node>
     </node>
@@ -1072,7 +1078,13 @@
         <node concept="1SiIV0" id="5w_kaFFWUQc" role="3bR37C">
           <node concept="3bR9La" id="5w_kaFFWUQd" role="1SiIV1">
             <property role="3bR36h" value="false" />
-            <ref role="3bR37D" node="65DJywFj0Fi" resolve="jetbrains.mps.typechecking.ui" />
+            <ref role="3bR37D" node="65DJywFj0Fi" resolve="jetbrains.mps.typechecking" />
+          </node>
+        </node>
+        <node concept="1SiIV0" id="55Q$YFtvxju" role="3bR37C">
+          <node concept="3bR9La" id="55Q$YFtvxjv" role="1SiIV1">
+            <property role="3bR36h" value="false" />
+            <ref role="3bR37D" node="55Q$YFtvwQY" resolve="jetbrains.mps.typechecking.ui" />
           </node>
         </node>
       </node>
@@ -1081,8 +1093,8 @@
       <property role="TrG5h" value="typechecking" />
       <node concept="1E1JtA" id="65DJywFj0Fi" role="2G$12L">
         <property role="BnDLt" value="true" />
-        <property role="TrG5h" value="jetbrains.mps.typechecking.ui" />
-        <property role="3LESm3" value="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae" />
+        <property role="TrG5h" value="jetbrains.mps.typechecking" />
+        <property role="3LESm3" value="6998f568-f0e9-473b-b4a8-9efb6499fc8d" />
         <property role="2GAjPV" value="false" />
         <node concept="55IIr" id="65DJywFj0Fj" role="3LF7KH">
           <node concept="2Ry0Ak" id="65DJywFj0LR" role="iGT6I">
@@ -1090,9 +1102,9 @@
             <node concept="2Ry0Ak" id="65DJywFj0Qg" role="2Ry0An">
               <property role="2Ry0Am" value="solutions" />
               <node concept="2Ry0Ak" id="65DJywFj0UD" role="2Ry0An">
-                <property role="2Ry0Am" value="jetbrains.mps.typechecking.ui" />
-                <node concept="2Ry0Ak" id="55Q$YFtqlRS" role="2Ry0An">
-                  <property role="2Ry0Am" value="jetbrains.mps.typechecking.ui.msd" />
+                <property role="2Ry0Am" value="jetbrains.mps.typechecking" />
+                <node concept="2Ry0Ak" id="55Q$YFtvx5w" role="2Ry0An">
+                  <property role="2Ry0Am" value="jetbrains.mps.typechecking.msd" />
                 </node>
               </node>
             </node>
@@ -1104,60 +1116,18 @@
             <ref role="3bR37D" node="7BVjoXzUx$V" resolve="jetbrains.mps.logic.runtime" />
           </node>
         </node>
-        <node concept="1SiIV0" id="65DJywFj290" role="3bR37C">
-          <node concept="3bR9La" id="65DJywFj291" role="1SiIV1">
-            <property role="3bR36h" value="false" />
-            <ref role="3bR37D" to="ffeo:1ia2VB5guYy" resolve="MPS.IDEA" />
-          </node>
-        </node>
-        <node concept="1SiIV0" id="65DJywFj292" role="3bR37C">
-          <node concept="3bR9La" id="65DJywFj293" role="1SiIV1">
-            <property role="3bR36h" value="false" />
-            <ref role="3bR37D" to="ffeo:1TaHNgiIbJ$" resolve="jetbrains.mps.ide.editor" />
-          </node>
-        </node>
         <node concept="1SiIV0" id="65DJywFj294" role="3bR37C">
           <node concept="3bR9La" id="65DJywFj295" role="1SiIV1">
             <property role="3bR36h" value="false" />
             <ref role="3bR37D" node="7BVjoXzUx9d" resolve="jetbrains.mps.lang.typesystem2.template" />
           </node>
         </node>
-        <node concept="1SiIV0" id="65DJywFj298" role="3bR37C">
-          <node concept="3bR9La" id="65DJywFj299" role="1SiIV1">
-            <property role="3bR36h" value="false" />
-            <ref role="3bR37D" to="ffeo:1TaHNgiIbJb" resolve="MPS.Platform" />
-          </node>
-        </node>
-        <node concept="1SiIV0" id="65DJywFj29a" role="3bR37C">
-          <node concept="3bR9La" id="65DJywFj29b" role="1SiIV1">
-            <property role="3bR36h" value="true" />
-            <ref role="3bR37D" to="ffeo:1TaHNgiIbIZ" resolve="MPS.Editor" />
-          </node>
-        </node>
         <node concept="1SiIV0" id="65DJywFj29g" role="3bR37C">
           <node concept="3bR9La" id="65DJywFj29h" role="1SiIV1">
             <property role="3bR36h" value="false" />
             <ref role="3bR37D" node="7BVjoXzUxoR" resolve="jetbrains.mps.logic.reactor" />
           </node>
         </node>
-        <node concept="1SiIV0" id="65DJywFj29i" role="3bR37C">
-          <node concept="3bR9La" id="65DJywFj29j" role="1SiIV1">
-            <property role="3bR36h" value="false" />
-            <ref role="3bR37D" to="ffeo:mXGwHwhVPj" resolve="JDK" />
-          </node>
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             <node concept="L2wRC" id="3u5wJtgSbK" role="39821P">
               <ref role="L2wRA" node="3u5wJtgiSM" resolve="jetbrains.mps.lang.smodel.types" />
             </node>
@@ -1837,7 +1929,7 @@
                   <node concept="2Ry0Ak" id="3NqN4u$_rDC" role="2Ry0An">
                     <property role="2Ry0Am" value="solutions" />
                     <node concept="2Ry0Ak" id="3NqN4u$_rDD" role="2Ry0An">
-                      <property role="2Ry0Am" value="jetbrains.mps.typechecking.ui" />
+                      <property role="2Ry0Am" value="jetbrains.mps.typechecking" />
                       <node concept="2Ry0Ak" id="3NqN4u$_rDE" role="2Ry0An">
                         <property role="2Ry0Am" value="lib" />
                       </node>
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/jetbrains.mps.typechecking.sample.test.msd b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/jetbrains.mps.typechecking.sample.test.msd
index 28aef73d..0bb108f6 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/jetbrains.mps.typechecking.sample.test.msd
+++ b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/jetbrains.mps.typechecking.sample.test.msd
@@ -43,9 +43,10 @@
     <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
     <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
     <module reference="a5478664-6b44-4c62-a9f7-434f8aa57eee(jetbrains.mps.logic.runtime)" version="0" />
-    <module reference="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae(jetbrains.mps.typechecking)" version="0" />
+    <module reference="6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.typechecking)" version="0" />
     <module reference="3ddddf69-9ff0-426b-9365-51ae7356fb82(jetbrains.mps.typechecking.sample)" version="0" />
     <module reference="1b65dfe8-24ff-41c3-9a3e-70f102942455(jetbrains.mps.typechecking.sample.test)" version="0" />
+    <module reference="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae(jetbrains.mps.typechecking.ui)" version="0" />
   </dependencyVersions>
 </solution>
 
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.bounds.bad@tests.mps b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.bounds.bad@tests.mps
index 49eb63c2..31112d79 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.bounds.bad@tests.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.bounds.bad@tests.mps
@@ -11,6 +11,7 @@
     <import index="7rut" ref="r:b1bec7fa-733c-4182-bbd4-b266e3d7e6db(jetbrains.mps.typechecking.sample.bounds.bad)" />
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
     <import index="t5kh" ref="r:1514c681-0724-461e-a435-315a6af4b3b4(jetbrains.mps.typechecking.ui.plugin)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
   </imports>
   <registry>
     <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
@@ -108,9 +109,9 @@
       <node concept="3clFbS" id="1N_0WA5DT8I" role="3clF47">
         <node concept="2Hmddi" id="4ekooLap0nE" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKqaJ" role="2Hmdds">
-            <node concept="2YIFZM" id="6nJA6bpKq32" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBy" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKq33" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKq34" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5DX6Z" resolve="Test_Sample_bad1" />
@@ -122,7 +123,7 @@
               <node concept="1jxXqW" id="6nJA6bpKq36" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKqof" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="4ekooLap0B2" role="3_9lra">
@@ -139,9 +140,9 @@
       <node concept="3clFbS" id="4ekooLap0M$" role="3clF47">
         <node concept="2Hmddi" id="4ekooLap0MH" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKqCv" role="2Hmdds">
-            <node concept="2YIFZM" id="6nJA6bpKqwM" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBv" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKqwN" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKqwO" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5J$6h" resolve="Test_Sample_bad2" />
@@ -153,7 +154,7 @@
               <node concept="1jxXqW" id="6nJA6bpKqwQ" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKqQf" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="4ekooLap0MN" role="3_9lra">
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.bounds@tests.mps b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.bounds@tests.mps
index 29a1bfcc..7f5733d3 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.bounds@tests.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.bounds@tests.mps
@@ -14,6 +14,7 @@
     <import index="f6t6" ref="r:9993217f-5bfa-4281-bc47-527677747cb2(jetbrains.mps.typechecking.sample.bounds)" />
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
     <import index="t5kh" ref="r:1514c681-0724-461e-a435-315a6af4b3b4(jetbrains.mps.typechecking.ui.plugin)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
   </imports>
   <registry>
     <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
@@ -119,9 +120,9 @@
       <node concept="3clFbS" id="1N_0WA5DT8I" role="3clF47">
         <node concept="3ykFI1" id="1N_0WA5IMvR" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKr9l" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKr0g" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBx" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKr0h" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKr0i" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5DX6Z" resolve="Test_Sample" />
@@ -133,7 +134,7 @@
               <node concept="1jxXqW" id="6nJA6bpKr0k" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKrmZ" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="1N_0WA5IN6H" role="3_9lra">
@@ -150,9 +151,9 @@
       <node concept="3clFbS" id="1N_0WA5J$AF" role="3clF47">
         <node concept="3ykFI1" id="1N_0WA5J$AO" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKrAI" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKrtD" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBA" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKrtE" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKrtF" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5J$6h" resolve="Test_Sample2" />
@@ -164,7 +165,7 @@
               <node concept="1jxXqW" id="6nJA6bpKrtH" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKrOo" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="1N_0WA5J$AU" role="3_9lra">
@@ -181,9 +182,9 @@
       <node concept="3clFbS" id="5DSQNPPS8Ea" role="3clF47">
         <node concept="3ykFI1" id="5DSQNPPS8Eb" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKs9r" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKrVa" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBC" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKrVb" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKrVc" role="2Oq$k0">
                   <ref role="3xOPvv" node="5DSQNPPS8Va" resolve="Test_Variance" />
@@ -195,7 +196,7 @@
               <node concept="1jxXqW" id="6nJA6bpKrVe" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKsq0" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="5DSQNPPS8Eh" role="3_9lra">
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.codeAnal@tests.mps b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.codeAnal@tests.mps
index 03e3c001..6b672e87 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.codeAnal@tests.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.codeAnal@tests.mps
@@ -12,6 +12,7 @@
     <import index="hwt6" ref="r:1f3a7853-f20c-4f91-9912-5e82d9d1651a(jetbrains.mps.typechecking.sample.codeAnal)" />
     <import index="t5kh" ref="r:1514c681-0724-461e-a435-315a6af4b3b4(jetbrains.mps.typechecking.ui.plugin)" />
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
   </imports>
   <registry>
     <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
@@ -104,9 +105,9 @@
       <node concept="3clFbS" id="1N_0WA5DT8I" role="3clF47">
         <node concept="3ykFI1" id="1N_0WA5IMvR" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKsEr" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKsyQ" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBB$" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKsyR" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKsyS" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5DX6Z" resolve="Test_Thinlet" />
@@ -118,7 +119,7 @@
               <node concept="1jxXqW" id="6nJA6bpKsyU" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKsY6" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="1N_0WA5IN6H" role="3_9lra">
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.helloWorld@tests.mps b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.helloWorld@tests.mps
index 83e2ec42..99433ee0 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.helloWorld@tests.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.helloWorld@tests.mps
@@ -10,6 +10,7 @@
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
     <import index="bs09" ref="r:28026be8-9bf8-4f54-9319-0ca8a6d1299d(jetbrains.mps.typechecking.sample.helloWorld)" />
     <import index="t5kh" ref="r:1514c681-0724-461e-a435-315a6af4b3b4(jetbrains.mps.typechecking.ui.plugin)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
   </imports>
   <registry>
     <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
@@ -110,9 +111,9 @@
       <node concept="3clFbS" id="1N_0WA5DT8I" role="3clF47">
         <node concept="3ykFI1" id="1N_0WA5IMvR" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKteJ" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKt7i" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBz" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKt7j" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKt7k" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5DX6Z" resolve="Test_HelloWorld" />
@@ -124,7 +125,7 @@
               <node concept="1jxXqW" id="6nJA6bpKt7m" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKtyF" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="1N_0WA5IN6H" role="3_9lra">
@@ -141,9 +142,9 @@
       <node concept="3clFbS" id="7$Xw2YtL_l2" role="3clF47">
         <node concept="3ykFI1" id="7$Xw2YtL_l3" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKtUh" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKtBH" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBB_" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKtBI" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKtBJ" role="2Oq$k0">
                   <ref role="3xOPvv" node="7$Xw2YtL_mF" resolve="Test_Inheritance" />
@@ -155,7 +156,7 @@
               <node concept="1jxXqW" id="6nJA6bpKtBL" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKuak" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="7$Xw2YtL_l9" role="3_9lra">
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.simpleGenerics@tests.mps b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.simpleGenerics@tests.mps
index ebafab9c..81b0ea56 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.simpleGenerics@tests.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.simpleGenerics@tests.mps
@@ -10,6 +10,7 @@
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
     <import index="waaz" ref="r:5669dd77-177e-474f-8fb2-c015a8eb4306(jetbrains.mps.typechecking.sample.simpleGenerics)" />
     <import index="t5kh" ref="r:1514c681-0724-461e-a435-315a6af4b3b4(jetbrains.mps.typechecking.ui.plugin)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
   </imports>
   <registry>
     <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
@@ -110,9 +111,9 @@
       <node concept="3clFbS" id="1N_0WA5DT8I" role="3clF47">
         <node concept="3ykFI1" id="1N_0WA5IMvR" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKuqD" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKujc" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBw" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKujd" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKuje" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5DX6Z" resolve="Test_SimpleGenerics" />
@@ -124,7 +125,7 @@
               <node concept="1jxXqW" id="6nJA6bpKujg" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKuCg" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="1N_0WA5IN6H" role="3_9lra">
@@ -141,9 +142,9 @@
       <node concept="3clFbS" id="1N_0WA5JFrP" role="3clF47">
         <node concept="3ykFI1" id="1N_0WA5JFrQ" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKuOJ" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKuHi" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBu" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKuHj" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKuHk" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5JFiM" resolve="Test_SimpleGenerics2" />
@@ -155,7 +156,7 @@
               <node concept="1jxXqW" id="6nJA6bpKuHm" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKv2f" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="1N_0WA5JFrW" role="3_9lra">
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.slice@tests.mps b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.slice@tests.mps
index 851351f5..2a8a211a 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.slice@tests.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.sample.test/models/jetbrains.mps.typechecking.sample.slice@tests.mps
@@ -10,6 +10,7 @@
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
     <import index="9oqm" ref="r:a8ff5933-0f6e-4d4a-af4a-5da865d78faf(jetbrains.mps.typechecking.sample.slice)" />
     <import index="t5kh" ref="r:1514c681-0724-461e-a435-315a6af4b3b4(jetbrains.mps.typechecking.ui.plugin)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
   </imports>
   <registry>
     <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
@@ -110,9 +111,9 @@
       <node concept="3clFbS" id="1N_0WA5DT8I" role="3clF47">
         <node concept="3ykFI1" id="1N_0WA5IMvR" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKvFr" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKvcB" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBt" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKvcC" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKvcD" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5DX6Z" resolve="Test_ComplexTypeErasure" />
@@ -124,7 +125,7 @@
               <node concept="1jxXqW" id="6nJA6bpKvcF" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKvZn" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="1N_0WA5IN6H" role="3_9lra">
@@ -141,9 +142,9 @@
       <node concept="3clFbS" id="1N_0WA5JGix" role="3clF47">
         <node concept="3ykFI1" id="1N_0WA5JGiy" role="3cqZAp">
           <node concept="2OqwBi" id="6nJA6bpKwkc" role="3ykU8v">
-            <node concept="2YIFZM" id="6nJA6bpKw4p" role="2Oq$k0">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBs" role="2Oq$k0">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="2OqwBi" id="6nJA6bpKw4q" role="37wK5m">
                 <node concept="3xONca" id="6nJA6bpKw4r" role="2Oq$k0">
                   <ref role="3xOPvv" node="1N_0WA5JGhH" resolve="Test_GenericSubst" />
@@ -155,7 +156,7 @@
               <node concept="1jxXqW" id="6nJA6bpKw4t" role="37wK5m" />
             </node>
             <node concept="liA8E" id="6nJA6bpKwCp" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
           <node concept="3_1$Yv" id="1N_0WA5JGiC" role="3_9lra">
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.test/jetbrains.mps.lang.typechecking.test.msd b/typechecking/solutions/jetbrains.mps.typechecking.test/jetbrains.mps.lang.typechecking.test.msd
index 701f6451..6c6f9fde 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.test/jetbrains.mps.lang.typechecking.test.msd
+++ b/typechecking/solutions/jetbrains.mps.typechecking.test/jetbrains.mps.lang.typechecking.test.msd
@@ -18,6 +18,7 @@
     <dependency reexport="false">0fda14cc-a416-4c81-869a-2175d8b3325d(jetbrains.mps.baseLanguageExt)</dependency>
     <dependency reexport="false">ff6372a2-2f45-4ec3-952b-02581666015f(jetbrains.mps.lang.typesystem2.template)</dependency>
     <dependency reexport="false">35e2a720-13d8-4eda-88d3-ff9d78d5a3ae(jetbrains.mps.typechecking.ui)</dependency>
+    <dependency reexport="false">6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.typechecking)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="5" />
@@ -56,7 +57,8 @@
     <module reference="ff6372a2-2f45-4ec3-952b-02581666015f(jetbrains.mps.lang.typesystem2.template)" version="0" />
     <module reference="bbf5c548-7111-4a53-a117-cdefc664cf34(jetbrains.mps.logic.reactor)" version="0" />
     <module reference="a5478664-6b44-4c62-a9f7-434f8aa57eee(jetbrains.mps.logic.runtime)" version="0" />
-    <module reference="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae(jetbrains.mps.typechecking)" version="0" />
+    <module reference="6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.typechecking)" version="0" />
+    <module reference="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae(jetbrains.mps.typechecking.ui)" version="0" />
   </dependencyVersions>
 </solution>
 
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.test/models/jetbrains.mps.typechecking@tests.mps b/typechecking/solutions/jetbrains.mps.typechecking.test/models/jetbrains.mps.typechecking@tests.mps
index c5628450..6b5a0e6e 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.test/models/jetbrains.mps.typechecking@tests.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.test/models/jetbrains.mps.typechecking@tests.mps
@@ -16,7 +16,7 @@
   <imports>
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" />
     <import index="z1c3" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.project(MPS.Core/)" />
-    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.typechecking)" />
+    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.evaluation)" />
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
     <import index="umch" ref="r:4caa22a9-5195-4617-8800-5f9f74cc4480(jetbrains.mps.lang.typesystem2.helper.plugin)" />
     <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" />
@@ -36,6 +36,7 @@
     <import index="6exd" ref="r:0f9b1fb3-00f9-4480-b235-1a906a087ab2(jetbrains.mps.logic.treeform)" />
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
     <import index="w1kc" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.smodel(MPS.Core/)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
   </imports>
   <registry>
     <language id="8585453e-6bfb-4d80-98de-b16074f1d86c" name="jetbrains.mps.lang.test">
@@ -293,11 +294,11 @@
           <node concept="3cpWsn" id="6QH_LDtdTgs" role="3cpWs9">
             <property role="TrG5h" value="tc" />
             <node concept="3uibUv" id="6QH_LDtdTgp" role="1tU5fm">
-              <ref role="3uigEE" to="hano:4Z$O9mrQIzY" resolve="Typechecking" />
+              <ref role="3uigEE" to="tj24:4Z$O9mrQIzY" resolve="Typechecking" />
             </node>
-            <node concept="2YIFZM" id="6QH_LDtdTgt" role="33vP2m">
-              <ref role="37wK5l" to="hano:4Z$O9mrQIG1" resolve="get" />
-              <ref role="1Pybhc" to="hano:4Z$O9mrQIzY" resolve="Typechecking" />
+            <node concept="2YIFZM" id="55Q$YFtvvQb" role="33vP2m">
+              <ref role="37wK5l" to="tj24:4Z$O9mrQIG1" resolve="get" />
+              <ref role="1Pybhc" to="tj24:4Z$O9mrQIzY" resolve="Typechecking" />
               <node concept="2OqwBi" id="6QH_LDtdTwK" role="37wK5m">
                 <node concept="1jxXqW" id="6QH_LDtdTWQ" role="2Oq$k0" />
                 <node concept="liA8E" id="6QH_LDtdTVP" role="2OqNvi">
@@ -311,14 +312,14 @@
           <node concept="3cpWsn" id="6QH_LDtdVHk" role="3cpWs9">
             <property role="TrG5h" value="typesCache" />
             <node concept="3uibUv" id="6QH_LDtfmIh" role="1tU5fm">
-              <ref role="3uigEE" to="hano:6QH_LDtfe19" resolve="Typechecking.TypeCache" />
+              <ref role="3uigEE" to="tj24:6QH_LDtfe19" resolve="Typechecking.TypeCache" />
             </node>
             <node concept="2OqwBi" id="6QH_LDtdVHl" role="33vP2m">
               <node concept="37vLTw" id="6QH_LDtdVHm" role="2Oq$k0">
                 <ref role="3cqZAo" node="6QH_LDtdTgs" resolve="tc" />
               </node>
               <node concept="liA8E" id="6QH_LDtdVHn" role="2OqNvi">
-                <ref role="37wK5l" to="hano:4Z$O9mrQJgp" resolve="cachedTypes" />
+                <ref role="37wK5l" to="tj24:4Z$O9mrQJgp" resolve="cachedTypes" />
                 <node concept="37vLTw" id="6QH_LDtdVHo" role="37wK5m">
                   <ref role="3cqZAo" node="6QH_LDtdVp4" resolve="unit" />
                 </node>
@@ -336,14 +337,14 @@
           <node concept="3cpWsn" id="6QH_LDtdXLK" role="3cpWs9">
             <property role="TrG5h" value="typeCache2" />
             <node concept="3uibUv" id="6QH_LDtfmAJ" role="1tU5fm">
-              <ref role="3uigEE" to="hano:6QH_LDtfe19" resolve="Typechecking.TypeCache" />
+              <ref role="3uigEE" to="tj24:6QH_LDtfe19" resolve="Typechecking.TypeCache" />
             </node>
             <node concept="2OqwBi" id="6QH_LDtdXLL" role="33vP2m">
               <node concept="37vLTw" id="6QH_LDtdXLM" role="2Oq$k0">
                 <ref role="3cqZAo" node="6QH_LDtdTgs" resolve="tc" />
               </node>
               <node concept="liA8E" id="6QH_LDtdXLN" role="2OqNvi">
-                <ref role="37wK5l" to="hano:6QH_LDtbsGz" resolve="updateCachedTypes" />
+                <ref role="37wK5l" to="tj24:6QH_LDtbsGz" resolve="updateCachedTypes" />
                 <node concept="37vLTw" id="6QH_LDtdXLO" role="37wK5m">
                   <ref role="3cqZAo" node="6QH_LDtdVp4" resolve="unit" />
                 </node>
@@ -359,7 +360,7 @@
                             <ref role="3cqZAo" node="6QH_LDtdXLR" resolve="typeCache" />
                           </node>
                           <node concept="liA8E" id="6QH_LDteuBk" role="2OqNvi">
-                            <ref role="37wK5l" to="hano:6QH_LDtcxgx" resolve="typesModel" />
+                            <ref role="37wK5l" to="tj24:6QH_LDtcxgx" resolve="typesModel" />
                           </node>
                         </node>
                       </node>
@@ -408,7 +409,7 @@
                           <ref role="3cqZAo" node="6QH_LDtdXLR" resolve="typeCache" />
                         </node>
                         <node concept="liA8E" id="6QH_LDtesSt" role="2OqNvi">
-                          <ref role="37wK5l" to="hano:6QH_LDtcYUC" resolve="putType" />
+                          <ref role="37wK5l" to="tj24:6QH_LDtcYUC" resolve="putType" />
                           <node concept="2OqwBi" id="6QH_LDteGcY" role="37wK5m">
                             <node concept="2JrnkZ" id="6QH_LDteEw4" role="2Oq$k0">
                               <node concept="3xONca" id="6QH_LDtetdX" role="2JrQYb">
@@ -430,7 +431,7 @@
                   <node concept="37vLTG" id="6QH_LDtdXLR" role="1bW2Oz">
                     <property role="TrG5h" value="typeCache" />
                     <node concept="3uibUv" id="6QH_LDtdXLS" role="1tU5fm">
-                      <ref role="3uigEE" to="hano:6QH_LDtcxgf" resolve="Typechecking.UpdatableTypeCache" />
+                      <ref role="3uigEE" to="tj24:6QH_LDtcxgf" resolve="Typechecking.UpdatableTypeCache" />
                     </node>
                   </node>
                 </node>
@@ -448,14 +449,14 @@
           <node concept="3cpWsn" id="6QH_LDtdZNu" role="3cpWs9">
             <property role="TrG5h" value="typesCache3" />
             <node concept="3uibUv" id="6QH_LDtfmZy" role="1tU5fm">
-              <ref role="3uigEE" to="hano:6QH_LDtfe19" resolve="Typechecking.TypeCache" />
+              <ref role="3uigEE" to="tj24:6QH_LDtfe19" resolve="Typechecking.TypeCache" />
             </node>
             <node concept="2OqwBi" id="6QH_LDtdZNv" role="33vP2m">
               <node concept="37vLTw" id="6QH_LDtdZNw" role="2Oq$k0">
                 <ref role="3cqZAo" node="6QH_LDtdTgs" resolve="tc" />
               </node>
               <node concept="liA8E" id="6QH_LDtdZNx" role="2OqNvi">
-                <ref role="37wK5l" to="hano:4Z$O9mrQJgp" resolve="cachedTypes" />
+                <ref role="37wK5l" to="tj24:4Z$O9mrQJgp" resolve="cachedTypes" />
                 <node concept="37vLTw" id="6QH_LDtdZNy" role="37wK5m">
                   <ref role="3cqZAo" node="6QH_LDtdVp4" resolve="unit" />
                 </node>
@@ -481,7 +482,7 @@
                 <ref role="3cqZAo" node="6QH_LDtdZNu" resolve="typesCache3" />
               </node>
               <node concept="liA8E" id="6QH_LDteITL" role="2OqNvi">
-                <ref role="37wK5l" to="hano:6QH_LDtffJj" resolve="typeOf" />
+                <ref role="37wK5l" to="tj24:6QH_LDtffJj" resolve="typeOf" />
                 <node concept="3xONca" id="6QH_LDteITM" role="37wK5m">
                   <ref role="3xOPvv" node="6QH_LDtdU18" resolve="foo" />
                 </node>
@@ -622,11 +623,11 @@
           <node concept="3cpWsn" id="6$7vuu2ugt3" role="3cpWs9">
             <property role="TrG5h" value="tplApp" />
             <node concept="3uibUv" id="6$7vuu2ugsZ" role="1tU5fm">
-              <ref role="3uigEE" to="hano:3GlpCDSxTG7" resolve="TypecheckingTemplates" />
+              <ref role="3uigEE" to="tj24:3GlpCDSxTG7" resolve="TypecheckingTemplates" />
             </node>
             <node concept="2ShNRf" id="6$7vuu2ugt4" role="33vP2m">
               <node concept="1pGfFk" id="6$7vuu2ugt5" role="2ShVmc">
-                <ref role="37wK5l" to="hano:3GlpCDSychS" resolve="TypecheckingTemplates" />
+                <ref role="37wK5l" to="tj24:3GlpCDSychS" resolve="TypecheckingTemplates" />
                 <node concept="37vLTw" id="6$7vuu2ugt6" role="37wK5m">
                   <ref role="3cqZAo" node="6$7vuu2ugbx" resolve="repository" />
                 </node>
@@ -645,7 +646,7 @@
                 <ref role="3cqZAo" node="6$7vuu2ugt3" resolve="tplApp" />
               </node>
               <node concept="liA8E" id="6$7vuu2ujxU" role="2OqNvi">
-                <ref role="37wK5l" to="hano:3GlpCDSxTKz" resolve="applyTemplates" />
+                <ref role="37wK5l" to="tj24:3GlpCDSxTKz" resolve="applyTemplates" />
                 <node concept="2OqwBi" id="6$7vuu2ujxV" role="37wK5m">
                   <node concept="3xONca" id="6$7vuu2ujxW" role="2Oq$k0">
                     <ref role="3xOPvv" node="6$7vuu2ubYm" resolve="cls" />
@@ -687,7 +688,7 @@
                         <ref role="3cqZAo" node="6$7vuu2ugt3" resolve="tplApp" />
                       </node>
                       <node concept="liA8E" id="6QH_LDtbV5Y" role="2OqNvi">
-                        <ref role="37wK5l" to="hano:3GlpCDSyRnn" resolve="getExpressionSolver" />
+                        <ref role="37wK5l" to="tj24:3GlpCDSyRnn" resolve="getExpressionSolver" />
                       </node>
                     </node>
                   </node>
@@ -781,7 +782,7 @@
                   <ref role="3cqZAo" node="6$7vuu2ugt3" resolve="tplApp" />
                 </node>
                 <node concept="liA8E" id="1CcQBrQrTBl" role="2OqNvi">
-                  <ref role="37wK5l" to="hano:3GlpCDSyO$P" resolve="getPrograms" />
+                  <ref role="37wK5l" to="tj24:3GlpCDSyO$P" resolve="getPrograms" />
                 </node>
               </node>
             </node>
@@ -801,11 +802,11 @@
               <node concept="3cpWsn" id="1CcQBrQng1y" role="3cpWs9">
                 <property role="TrG5h" value="types" />
                 <node concept="3uibUv" id="1CcQBrQng1v" role="1tU5fm">
-                  <ref role="3uigEE" to="hano:6HT7BWBSFOV" resolve="TypeCollector" />
+                  <ref role="3uigEE" to="tj24:6HT7BWBSFOV" resolve="TypeCollector" />
                 </node>
                 <node concept="2ShNRf" id="1CcQBrQng1z" role="33vP2m">
                   <node concept="1pGfFk" id="1CcQBrQng1$" role="2ShVmc">
-                    <ref role="37wK5l" to="hano:1CcQBrQmOiH" resolve="TypeCollector" />
+                    <ref role="37wK5l" to="tj24:1CcQBrQmOiH" resolve="TypeCollector" />
                     <node concept="2OqwBi" id="1CcQBrQskR9" role="37wK5m">
                       <node concept="37vLTw" id="1CcQBrQskRa" role="2Oq$k0">
                         <ref role="3cqZAo" node="6QH_LDtbV5Q" resolve="evaluator" />
@@ -830,7 +831,7 @@
                     <ref role="3cqZAo" node="1CcQBrQng1y" resolve="types" />
                   </node>
                   <node concept="liA8E" id="1CcQBrQoexC" role="2OqNvi">
-                    <ref role="37wK5l" to="hano:1CcQBrQmO_H" resolve="typeNode" />
+                    <ref role="37wK5l" to="tj24:1CcQBrQmO_H" resolve="typeNode" />
                     <node concept="2OqwBi" id="6$7vuu2w3U0" role="37wK5m">
                       <node concept="2JrnkZ" id="6$7vuu2w3Lh" role="2Oq$k0">
                         <node concept="3xONca" id="6$7vuu2w20p" role="2JrQYb">
@@ -916,12 +917,12 @@
                 <property role="TrG5h" value="typeOfExpr" />
                 <node concept="3Tqbb2" id="6$7vuu2wZdp" role="1tU5fm" />
                 <node concept="2OqwBi" id="6$7vuu2wZds" role="33vP2m">
-                  <node concept="2YIFZM" id="6$7vuu2wZdt" role="2Oq$k0">
-                    <ref role="37wK5l" to="hano:7kaxm0sEy4A" resolve="getInstance" />
-                    <ref role="1Pybhc" to="hano:7kaxm0sEy3e" resolve="TypecheckingFacade" />
+                  <node concept="2YIFZM" id="55Q$YFtvvQc" role="2Oq$k0">
+                    <ref role="37wK5l" to="tj24:7kaxm0sEy4A" resolve="getInstance" />
+                    <ref role="1Pybhc" to="tj24:7kaxm0sEy3e" resolve="TypecheckingFacade" />
                   </node>
                   <node concept="liA8E" id="6$7vuu2wZdu" role="2OqNvi">
-                    <ref role="37wK5l" to="hano:7kaxm0sEBHs" resolve="typeOf" />
+                    <ref role="37wK5l" to="tj24:7kaxm0sEBHs" resolve="typeOf" />
                     <node concept="3xONca" id="6$7vuu2wZdv" role="37wK5m">
                       <ref role="3xOPvv" node="6$7vuu2wqbE" resolve="expr" />
                     </node>
@@ -947,12 +948,12 @@
                 <property role="TrG5h" value="typeOfExpr2" />
                 <node concept="3Tqbb2" id="6$7vuu2xGoC" role="1tU5fm" />
                 <node concept="2OqwBi" id="6$7vuu2xGoD" role="33vP2m">
-                  <node concept="2YIFZM" id="6$7vuu2xGoE" role="2Oq$k0">
-                    <ref role="37wK5l" to="hano:7kaxm0sEy4A" resolve="getInstance" />
-                    <ref role="1Pybhc" to="hano:7kaxm0sEy3e" resolve="TypecheckingFacade" />
+                  <node concept="2YIFZM" id="55Q$YFtvvQd" role="2Oq$k0">
+                    <ref role="37wK5l" to="tj24:7kaxm0sEy4A" resolve="getInstance" />
+                    <ref role="1Pybhc" to="tj24:7kaxm0sEy3e" resolve="TypecheckingFacade" />
                   </node>
                   <node concept="liA8E" id="6$7vuu2xGoF" role="2OqNvi">
-                    <ref role="37wK5l" to="hano:7kaxm0sEBHs" resolve="typeOf" />
+                    <ref role="37wK5l" to="tj24:7kaxm0sEBHs" resolve="typeOf" />
                     <node concept="3xONca" id="6$7vuu2xGoG" role="37wK5m">
                       <ref role="3xOPvv" node="6$7vuu2wqbE" resolve="expr" />
                     </node>
@@ -1229,11 +1230,11 @@
           <node concept="3cpWsn" id="7y50OW6ZE45" role="3cpWs9">
             <property role="TrG5h" value="checkTypes" />
             <node concept="3uibUv" id="7y50OW6ZE42" role="1tU5fm">
-              <ref role="3uigEE" to="t5kh:7y50OW6XXpr" resolve="LaunchTypechecking.TypecheckingResult" />
+              <ref role="3uigEE" to="tj24:7y50OW6XXpr" resolve="LaunchTypechecking.TypecheckingResult" />
             </node>
-            <node concept="2YIFZM" id="7y50OW6ZE46" role="33vP2m">
-              <ref role="37wK5l" to="t5kh:7y50OW6XU7p" resolve="checkTypes" />
-              <ref role="1Pybhc" to="t5kh:1N_0WA5JxZO" resolve="LaunchTypechecking" />
+            <node concept="2YIFZM" id="6IQb_RxcBBB" role="33vP2m">
+              <ref role="37wK5l" to="tj24:7y50OW6XU7p" resolve="checkTypes" />
+              <ref role="1Pybhc" to="tj24:1N_0WA5JxZO" resolve="LaunchTypechecking" />
               <node concept="3xONca" id="7y50OW6ZE47" role="37wK5m">
                 <ref role="3xOPvv" node="4nxCIBqymjB" resolve="class" />
               </node>
@@ -1247,7 +1248,7 @@
               <ref role="3cqZAo" node="7y50OW6ZE45" resolve="checkTypes" />
             </node>
             <node concept="liA8E" id="7y50OW6ZEtL" role="2OqNvi">
-              <ref role="37wK5l" to="t5kh:7y50OW6Y0Sl" resolve="error" />
+              <ref role="37wK5l" to="tj24:7y50OW6Y0Sl" resolve="error" />
             </node>
           </node>
         </node>
@@ -1288,7 +1289,7 @@
                 <ref role="3cqZAo" node="7y50OW6ZE45" resolve="checkTypes" />
               </node>
               <node concept="liA8E" id="7y50OW6ZH4p" role="2OqNvi">
-                <ref role="37wK5l" to="t5kh:7y50OW6XYoC" resolve="getType" />
+                <ref role="37wK5l" to="tj24:7y50OW6XYoC" resolve="getType" />
                 <node concept="3xONca" id="7y50OW6ZH4q" role="37wK5m">
                   <ref role="3xOPvv" node="1eKXYsjuWjw" resolve="fieldA" />
                 </node>
@@ -1307,7 +1308,7 @@
                 <ref role="3cqZAo" node="7y50OW6ZE45" resolve="checkTypes" />
               </node>
               <node concept="liA8E" id="7y50OW701J5" role="2OqNvi">
-                <ref role="37wK5l" to="t5kh:7y50OW6XYoC" resolve="getType" />
+                <ref role="37wK5l" to="tj24:7y50OW6XYoC" resolve="getType" />
                 <node concept="3xONca" id="7y50OW701Tq" role="37wK5m">
                   <ref role="3xOPvv" node="7y50OW6ZXVj" resolve="fieldB" />
                 </node>
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.ui/jetbrains.mps.typechecking.ui.msd b/typechecking/solutions/jetbrains.mps.typechecking.ui/jetbrains.mps.typechecking.ui.msd
index 8c104e62..bb3952e2 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.ui/jetbrains.mps.typechecking.ui.msd
+++ b/typechecking/solutions/jetbrains.mps.typechecking.ui/jetbrains.mps.typechecking.ui.msd
@@ -4,26 +4,14 @@
     <modelRoot contentPath="${module}" type="default">
       <sourceRoot location="models" />
     </modelRoot>
-    <modelRoot contentPath="${module}" type="java_classes">
-      <sourceRoot location="lib/rxjava-2.1.1.jar" />
-      <sourceRoot location="lib/reactive-streams-1.0.0.final.jar" />
-      <sourceRoot location="lib/rxjava2-swing-0.2.1.jar" />
-    </modelRoot>
   </models>
-  <stubModelEntries>
-    <stubModelEntry path="${module}/lib/rxjava-2.1.1.jar" />
-    <stubModelEntry path="${module}/lib/rxjava2-swing-0.2.1.jar" />
-    <stubModelEntry path="${module}/lib/reactive-streams-1.0.0.final.jar" />
-  </stubModelEntries>
   <sourcePath />
   <dependencies>
     <dependency reexport="false">498d89d2-c2e9-11e2-ad49-6cf049e62fe5(MPS.IDEA)</dependency>
     <dependency reexport="true">a5478664-6b44-4c62-a9f7-434f8aa57eee(jetbrains.mps.logic.runtime)</dependency>
     <dependency reexport="false">742f6602-5a2f-4313-aa6e-ae1cd4ffdc61(MPS.Platform)</dependency>
-    <dependency reexport="false">df9d410f-2ebb-43f7-893a-483a4f085250(jetbrains.mps.smodel.resources)</dependency>
     <dependency reexport="false">26e8f4ce-2a35-4f44-8065-e5ba154b18e9(jetbrains.mps.lang.typesystem2.runtime)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
-    <dependency reexport="false">ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)</dependency>
     <dependency reexport="false">a1250a4d-c090-42c3-ad7c-d298a3357dd4(jetbrains.mps.make.runtime)</dependency>
     <dependency reexport="false">6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)</dependency>
     <dependency reexport="false">5b1f863d-65a0-41a6-a801-33896be24202(jetbrains.mps.ide.editor)</dependency>
@@ -32,6 +20,7 @@
     <dependency reexport="false">bbf5c548-7111-4a53-a117-cdefc664cf34(jetbrains.mps.logic.reactor)</dependency>
     <dependency reexport="true">bfbdd672-7ff5-403f-af4f-16da5226f34c(jetbrains.mps.findUsages.runtime)</dependency>
     <dependency reexport="false">274c9cfa-1024-4444-904c-f2f1383a35da(jetbrains.mps.lang.typesystem2.helper)</dependency>
+    <dependency reexport="true">6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.typechecking)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="5" />
@@ -60,17 +49,14 @@
     <module reference="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61(MPS.Platform)" version="0" />
     <module reference="bfbdd672-7ff5-403f-af4f-16da5226f34c(jetbrains.mps.findUsages.runtime)" version="0" />
     <module reference="5b1f863d-65a0-41a6-a801-33896be24202(jetbrains.mps.ide.editor)" version="0" />
-    <module reference="ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)" version="0" />
-    <module reference="d7eb0a2a-bd50-4576-beae-e4a89db35f20(jetbrains.mps.lang.scopes.runtime)" version="0" />
-    <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
     <module reference="274c9cfa-1024-4444-904c-f2f1383a35da(jetbrains.mps.lang.typesystem2.helper)" version="0" />
     <module reference="26e8f4ce-2a35-4f44-8065-e5ba154b18e9(jetbrains.mps.lang.typesystem2.runtime)" version="0" />
-    <module reference="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae(jetbrains.mps.lang.typesystem2.sampleplugin)" version="0" />
     <module reference="ff6372a2-2f45-4ec3-952b-02581666015f(jetbrains.mps.lang.typesystem2.template)" version="0" />
     <module reference="bbf5c548-7111-4a53-a117-cdefc664cf34(jetbrains.mps.logic.reactor)" version="0" />
     <module reference="a5478664-6b44-4c62-a9f7-434f8aa57eee(jetbrains.mps.logic.runtime)" version="0" />
     <module reference="a1250a4d-c090-42c3-ad7c-d298a3357dd4(jetbrains.mps.make.runtime)" version="0" />
-    <module reference="df9d410f-2ebb-43f7-893a-483a4f085250(jetbrains.mps.smodel.resources)" version="0" />
+    <module reference="6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.typechecking)" version="0" />
+    <module reference="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae(jetbrains.mps.typechecking.ui)" version="0" />
   </dependencyVersions>
 </solution>
 
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.ui/models/ui.plugin.mps b/typechecking/solutions/jetbrains.mps.typechecking.ui/models/ui.plugin.mps
index 96e77b7c..552eafb6 100644
--- a/typechecking/solutions/jetbrains.mps.typechecking.ui/models/ui.plugin.mps
+++ b/typechecking/solutions/jetbrains.mps.typechecking.ui/models/ui.plugin.mps
@@ -21,7 +21,6 @@
     <import index="jkm4" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.ui(MPS.IDEA/)" />
     <import index="oy3s" ref="r:a6030cee-34eb-4503-b1bf-015fe5cd8c1a(jetbrains.mps.logic.builtin.unification)" />
     <import index="18ew" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.util(MPS.Core/)" />
-    <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" />
     <import index="qq03" ref="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61/java:jetbrains.mps.ide.actions(MPS.Platform/)" />
     <import index="w1kc" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.smodel(MPS.Core/)" />
     <import index="hfuk" ref="r:b25dd364-bc3f-4a66-97d1-262009610c5e(jetbrains.mps.make)" />
@@ -46,15 +45,12 @@
     <import index="bj13" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.logical(jetbrains.mps.logic.reactor/)" />
     <import index="w7la" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.evaluation(jetbrains.mps.logic.reactor/)" />
     <import index="av0y" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.program(jetbrains.mps.logic.reactor/)" />
-    <import index="zx3l" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.core(jetbrains.mps.logic.reactor/)" />
-    <import index="cxk7" ref="r:daa544a7-0a5c-49c0-a54c-4c2a5b4868aa(jetbrains.mps.logic.builtin.predicate)" />
     <import index="qkt" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.actionSystem(MPS.IDEA/)" />
     <import index="rgfa" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:javax.swing.tree(JDK/)" />
     <import index="u30n" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.ui.treeStructure.treetable(MPS.IDEA/)" />
     <import index="g1qu" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.util.ui(MPS.IDEA/)" />
     <import index="mhfm" ref="3f233e7f-b8a6-46d2-a57f-795d56775243/java:org.jetbrains.annotations(Annotations/)" />
     <import index="qqrq" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.ui.components(MPS.IDEA/)" />
-    <import index="7n8k" ref="r:475a2e92-d7d4-41c3-98e3-172d70b6f018(jetbrains.mps.logic.builtin.program)" />
     <import index="nz6g" ref="r:ac00f724-30be-446e-805c-2345efc460d7(jetbrains.mps.lang.typesystem2.program)" />
     <import index="c8ee" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:javax.swing.table(JDK/)" />
     <import index="lzb2" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.ui(MPS.IDEA/)" />
@@ -84,18 +80,15 @@
     <import index="ngmn" ref="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61/java:jetbrains.mps.ide.findusages.view(MPS.Platform/)" />
     <import index="f4zo" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.openapi.editor.cells(MPS.Editor/)" />
     <import index="hhnx" ref="1ed103c3-3aa6-49b7-9c21-6765ee11f224/java:jetbrains.mps.editor.runtime(MPS.Editor/)" />
-    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.typechecking)" />
+    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.evaluation)" />
     <import index="umch" ref="r:4caa22a9-5195-4617-8800-5f9f74cc4480(jetbrains.mps.lang.typesystem2.helper.plugin)" />
     <import index="ni5j" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util.regex(JDK/)" />
     <import index="jkny" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.wm(MPS.IDEA/)" />
-    <import index="m4y7" ref="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae/java:io.reactivex.schedulers(jetbrains.mps.typechecking.ui/)" />
-    <import index="unkn" ref="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae/java:io.reactivex(jetbrains.mps.typechecking.ui/)" />
-    <import index="f4yq" ref="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae/java:hu.akarnokd.rxjava2.swing(jetbrains.mps.typechecking.ui/)" />
-    <import index="e0w6" ref="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae/java:io.reactivex.observers(jetbrains.mps.typechecking.ui/)" />
-    <import index="5zyv" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util.concurrent(JDK/)" />
+    <import index="m4y7" ref="6998f568-f0e9-473b-b4a8-9efb6499fc8d/java:io.reactivex.schedulers(jetbrains.mps.typechecking/)" />
+    <import index="unkn" ref="6998f568-f0e9-473b-b4a8-9efb6499fc8d/java:io.reactivex(jetbrains.mps.typechecking/)" />
+    <import index="f4yq" ref="6998f568-f0e9-473b-b4a8-9efb6499fc8d/java:hu.akarnokd.rxjava2.swing(jetbrains.mps.typechecking/)" />
     <import index="d6hs" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.errors.item(MPS.Core/)" />
-    <import index="82uw" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util.function(JDK/)" />
-    <import index="xi6c" ref="35e2a720-13d8-4eda-88d3-ff9d78d5a3ae/java:io.reactivex.functions(jetbrains.mps.typechecking.ui/)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
     <import index="zn9m" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.util(MPS.IDEA/)" implicit="true" />
   </imports>
   <registry>
@@ -220,9 +213,6 @@
       <concept id="1224500764161" name="jetbrains.mps.baseLanguage.structure.BitwiseAndExpression" flags="nn" index="pVHWs" />
       <concept id="1224500799915" name="jetbrains.mps.baseLanguage.structure.BitwiseXorExpression" flags="nn" index="pVQyQ" />
       <concept id="1465982738277781862" name="jetbrains.mps.baseLanguage.structure.PlaceholderMember" flags="ng" index="2tJIrI" />
-      <concept id="1224573963862" name="jetbrains.mps.baseLanguage.structure.EnumValuesExpression" flags="nn" index="uiWXb">
-        <reference id="1224573974191" name="enumClass" index="uiZuM" />
-      </concept>
       <concept id="1239709250944" name="jetbrains.mps.baseLanguage.structure.PrefixIncrementExpression" flags="nn" index="2$rviw" />
       <concept id="5279705229678483897" name="jetbrains.mps.baseLanguage.structure.FloatingPointFloatConstant" flags="nn" index="2$xPTn">
         <property id="5279705229678483899" name="value" index="2$xPTl" />
@@ -246,11 +236,6 @@
       <concept id="1188220165133" name="jetbrains.mps.baseLanguage.structure.ArrayLiteral" flags="nn" index="2BsdOp">
         <child id="1188220173759" name="item" index="2BsfMF" />
       </concept>
-      <concept id="1095950406618" name="jetbrains.mps.baseLanguage.structure.DivExpression" flags="nn" index="FJ1c_" />
-      <concept id="1153952380246" name="jetbrains.mps.baseLanguage.structure.TryStatement" flags="nn" index="2GUZhq">
-        <child id="1153952416686" name="body" index="2GV8ay" />
-        <child id="1153952429843" name="finallyBody" index="2GVbov" />
-      </concept>
       <concept id="2820489544401957797" name="jetbrains.mps.baseLanguage.structure.DefaultClassCreator" flags="nn" index="HV5vD">
         <reference id="2820489544401957798" name="classifier" index="HV5vE" />
       </concept>
@@ -344,16 +329,13 @@
         <property id="1176718929932" name="isFinal" index="3TUv4t" />
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </concept>
-      <concept id="1109279763828" name="jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration" flags="ng" index="16euLQ">
-        <child id="1214996921760" name="bound" index="3ztrMU" />
-      </concept>
+      <concept id="1109279763828" name="jetbrains.mps.baseLanguage.structure.TypeVariableDeclaration" flags="ng" index="16euLQ" />
       <concept id="1109279851642" name="jetbrains.mps.baseLanguage.structure.GenericDeclaration" flags="ng" index="16eOlS">
         <child id="1109279881614" name="typeVariableDeclaration" index="16eVyc" />
       </concept>
       <concept id="1109283449304" name="jetbrains.mps.baseLanguage.structure.TypeVariableReference" flags="in" index="16syzq">
         <reference id="1109283546497" name="typeVariableDeclaration" index="16sUi3" />
       </concept>
-      <concept id="1092119917967" name="jetbrains.mps.baseLanguage.structure.MulExpression" flags="nn" index="17qRlL" />
       <concept id="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
         <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
       </concept>
@@ -363,9 +345,6 @@
       <concept id="4972933694980447171" name="jetbrains.mps.baseLanguage.structure.BaseVariableDeclaration" flags="ng" index="19Szcq">
         <child id="5680397130376446158" name="type" index="1tU5fm" />
       </concept>
-      <concept id="4269842503726207156" name="jetbrains.mps.baseLanguage.structure.LongLiteral" flags="nn" index="1adDum">
-        <property id="4269842503726207157" name="value" index="1adDun" />
-      </concept>
       <concept id="1068580123132" name="jetbrains.mps.baseLanguage.structure.BaseMethodDeclaration" flags="ng" index="3clF44">
         <property id="4276006055363816570" name="isSynchronized" index="od$2w" />
         <property id="1181808852946" name="isFinal" index="DiZV1" />
@@ -404,7 +383,6 @@
       <concept id="1068581242864" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclarationStatement" flags="nn" index="3cpWs8">
         <child id="1068581242865" name="localVariableDeclaration" index="3cpWs9" />
       </concept>
-      <concept id="1068581242867" name="jetbrains.mps.baseLanguage.structure.LongType" flags="in" index="3cpWsb" />
       <concept id="1068581242869" name="jetbrains.mps.baseLanguage.structure.MinusExpression" flags="nn" index="3cpWsd" />
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
@@ -420,10 +398,6 @@
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
         <child id="1081516765348" name="expression" index="3fr31v" />
       </concept>
-      <concept id="1154542696413" name="jetbrains.mps.baseLanguage.structure.ArrayCreatorWithInitializer" flags="nn" index="3g6Rrh">
-        <child id="1154542793668" name="componentType" index="3g7fb8" />
-        <child id="1154542803372" name="initValue" index="3g7hyw" />
-      </concept>
       <concept id="1204053956946" name="jetbrains.mps.baseLanguage.structure.IMethodCall" flags="ng" index="1ndlxa">
         <reference id="1068499141037" name="baseMethodDeclaration" index="37wK5l" />
         <child id="1068499141038" name="actualArgument" index="37wK5m" />
@@ -455,16 +429,8 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1214918975462" name="jetbrains.mps.baseLanguage.structure.PostfixDecrementExpression" flags="nn" index="3uO5VW" />
-      <concept id="7024111702304501418" name="jetbrains.mps.baseLanguage.structure.AndAssignmentExpression" flags="nn" index="3vZ8ra" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
       <concept id="1081855346303" name="jetbrains.mps.baseLanguage.structure.BreakStatement" flags="nn" index="3zACq4" />
-      <concept id="1184950988562" name="jetbrains.mps.baseLanguage.structure.ArrayCreator" flags="nn" index="3$_iS1">
-        <child id="1184951007469" name="componentType" index="3$_nBY" />
-        <child id="1184952969026" name="dimensionExpression" index="3$GQph" />
-      </concept>
-      <concept id="1184952934362" name="jetbrains.mps.baseLanguage.structure.DimensionExpression" flags="nn" index="3$GHV9">
-        <child id="1184953288404" name="expression" index="3$I4v7" />
-      </concept>
       <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
@@ -578,19 +544,11 @@
       <concept id="1167227138527" name="jetbrains.mps.baseLanguage.logging.structure.LogStatement" flags="nn" index="34ab3g">
         <property id="1167228628751" name="hasException" index="34fQS0" />
         <property id="1167245565795" name="severity" index="35gtTG" />
-        <child id="2034914114981546959" name="project" index="RQzLk" />
         <child id="1167227463056" name="logExpression" index="34bqiv" />
         <child id="1167227561449" name="exception" index="34bMjA" />
       </concept>
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     <language id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel">
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-        <reference id="1177026940964" name="conceptDeclaration" index="cht4Q" />
-      </concept>
-      <concept id="2396822768958367367" name="jetbrains.mps.lang.smodel.structure.AbstractTypeCastExpression" flags="nn" index="$5XWr">
-        <child id="6733348108486823193" name="leftExpression" index="1m5AlR" />
-        <child id="3906496115198199033" name="conceptArgument" index="3oSUPX" />
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       <concept id="1143226024141" name="jetbrains.mps.lang.smodel.structure.SModelType" flags="in" index="H_c77" />
       <concept id="1143234257716" name="jetbrains.mps.lang.smodel.structure.Node_GetModelOperation" flags="nn" index="I4A8Y" />
       <concept id="1145404486709" name="jetbrains.mps.lang.smodel.structure.SemanticDowncastExpression" flags="nn" index="2JrnkZ">
@@ -599,13 +557,7 @@
       <concept id="1206482823744" name="jetbrains.mps.lang.smodel.structure.Model_AddRootOperation" flags="nn" index="3BYIHo">
         <child id="1206482823746" name="nodeArgument" index="3BYIHq" />
       </concept>
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-        <property id="1238684351431" name="asCast" index="1BlNFB" />
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       <concept id="1138055754698" name="jetbrains.mps.lang.smodel.structure.SNodeType" flags="in" index="3Tqbb2" />
-      <concept id="1138056022639" name="jetbrains.mps.lang.smodel.structure.SPropertyAccess" flags="nn" index="3TrcHB">
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     <language id="ceab5195-25ea-4f22-9b92-103b95ca8c0c" name="jetbrains.mps.lang.core">
       <concept id="1133920641626" name="jetbrains.mps.lang.core.structure.BaseConcept" flags="ng" index="2VYdi">
@@ -706,9 +658,6 @@
         <child id="1206655844556" name="key" index="3MiK7k" />
         <child id="1206655853135" name="value" index="3MiMdn" />
       </concept>
-      <concept id="1522217801069396578" name="jetbrains.mps.baseLanguage.collections.structure.FoldLeftOperation" flags="nn" index="1MD8d$">
-        <child id="1522217801069421796" name="seed" index="1MDeny" />
-      </concept>
       <concept id="5686963296372573083" name="jetbrains.mps.baseLanguage.collections.structure.AbstractContainerType" flags="in" index="3O5elB">
         <child id="5686963296372573084" name="elementType" index="3O5elw" />
       </concept>
@@ -830,11 +779,11 @@
           <node concept="3cpWsn" id="6kREIVkWtdw" role="3cpWs9">
             <property role="TrG5h" value="applyTemplatesStep" />
             <node concept="3uibUv" id="6kREIVkWtdn" role="1tU5fm">
-              <ref role="3uigEE" node="1pPth$lAwc0" resolve="ApplyTemplatesStep" />
+              <ref role="3uigEE" to="tj24:1pPth$lAwc0" resolve="ApplyTemplatesStep" />
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             <node concept="2ShNRf" id="6kREIVkWtdx" role="33vP2m">
               <node concept="1pGfFk" id="6kREIVkWtdy" role="2ShVmc">
-                <ref role="37wK5l" node="1pPth$lDzTR" resolve="ApplyTemplatesStep" />
+                <ref role="37wK5l" to="tj24:1pPth$lDzTR" resolve="ApplyTemplatesStep" />
                 <node concept="37vLTw" id="6kREIVkXNZ5" role="37wK5m">
                   <ref role="3cqZAo" node="6kREIVkXNYZ" resolve="root" />
                 </node>
@@ -852,12 +801,11 @@
           <node concept="3cpWsn" id="6kREIVkWuSD" role="3cpWs9">
             <property role="TrG5h" value="evaluateRulesStep" />
             <node concept="3uibUv" id="6kREIVkWuSz" role="1tU5fm">
-              <ref role="3uigEE" node="1pPth$lBNWG" resolve="EvaluateRulesStep" />
+              <ref role="3uigEE" to="tj24:1pPth$lBNWG" resolve="EvaluateRulesStep" />
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             <node concept="2ShNRf" id="6kREIVkWuSE" role="33vP2m">
               <node concept="1pGfFk" id="6kREIVkWuSF" role="2ShVmc">
-                <ref role="37wK5l" node="1pPth$lHpLU" resolve="EvaluateRulesStep" />
-                <node concept="3clFbT" id="6kREIVkWuSG" role="37wK5m" />
+                <ref role="37wK5l" to="tj24:1pPth$lHpLU" resolve="EvaluateRulesStep" />
                 <node concept="2OqwBi" id="6kREIVkWuSH" role="37wK5m">
                   <node concept="2WthIp" id="6kREIVkWuSI" role="2Oq$k0" />
                   <node concept="1DTwFV" id="6kREIVkWuSJ" role="2OqNvi">
@@ -895,13 +843,13 @@
           <node concept="2OqwBi" id="1pPth$lO8WY" role="3clFbG">
             <node concept="2ShNRf" id="6kREIVkY11Q" role="2Oq$k0">
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-                <ref role="37wK5l" node="1pPth$lK1ZL" resolve="TypecheckingHelper" />
+                <ref role="37wK5l" to="tj24:1pPth$lK1ZL" resolve="TypecheckingHelper" />
                 <node concept="2ShNRf" id="6kREIVkY11S" role="37wK5m">
                   <node concept="YeOm9" id="6kREIVkY11T" role="2ShVmc">
                     <node concept="1Y3b0j" id="6kREIVkY11U" role="YeSDq">
                       <property role="2bfB8j" value="true" />
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                       <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
+                      <ref role="1Y3XeK" to="tj24:3F6vMxqaxpm" resolve="TypecheckingHelper.ProgressCallback" />
                       <node concept="3Tm1VV" id="6kREIVkY11V" role="1B3o_S" />
                       <node concept="3clFb_" id="6kREIVkY11W" role="jymVt">
                         <property role="TrG5h" value="ok" />
@@ -1019,7 +967,7 @@
               </node>
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             <node concept="liA8E" id="1pPth$lO9dC" role="2OqNvi">
-              <ref role="37wK5l" node="1pPth$lNVW2" resolve="executeAsync" />
+              <ref role="37wK5l" to="tj24:1pPth$lNVW2" resolve="executeAsync" />
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@@ -2477,1912 +2425,6 @@
       </node>
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-    <property role="TrG5h" value="MessageViewTracer" />
-    <node concept="2tJIrI" id="5mDiJnRXT3S" role="jymVt" />
-    <node concept="Qs71p" id="61vfVfp5tJN" role="jymVt">
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-      <property role="TrG5h" value="Event" />
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@@ -19523,7 +15694,7 @@
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@@ -27113,11 +23284,11 @@
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@@ -27135,14 +23306,11 @@
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+              <ref role="3uigEE" to="tj24:1pPth$lBNWG" resolve="EvaluateRulesStep" />
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@@ -27180,13 +23348,13 @@
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                       <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
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@@ -27304,7 +23472,7 @@
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@@ -27449,445 +23617,6 @@
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-          <node concept="3SKdUq" id="Hg6EndAhmZ" role="3SKWNk">
-            <property role="3SKdUp" value="the magic around &quot;setReadEnabledFlag&quot; is necessary because of the fact " />
-          </node>
-        </node>
-        <node concept="3SKdUt" id="Hg6EndAjnt" role="3cqZAp">
-          <node concept="3SKdUq" id="Hg6EndAjnu" role="3SKWNk">
-            <property role="3SKdUp" value="that tests are launched in WRITE action (see &quot;NodeTestCase&quot; impl)" />
-          </node>
-        </node>
-        <node concept="3SKdUt" id="Hg6EndAj3v" role="3cqZAp">
-          <node concept="3SKdUq" id="Hg6EndAj3x" role="3SKWNk">
-            <property role="3SKdUp" value="thus, in order to trick ModelAccess into believeing read is allowed from the scheduler's thread, " />
-          </node>
-        </node>
-        <node concept="3SKdUt" id="Hg6EndAkH0" role="3cqZAp">
-          <node concept="3SKdUq" id="Hg6EndAkH2" role="3SKWNk">
-            <property role="3SKdUp" value="we set this flag before any read action is requested by type checking" />
-          </node>
-        </node>
-        <node concept="3SKdUt" id="Hg6EndAlND" role="3cqZAp">
-          <node concept="3SKdUq" id="Hg6EndAlNF" role="3SKWNk">
-            <property role="3SKdUp" value="otherwise, the Application's lock would not allow any reads while a write is requested" />
-          </node>
-        </node>
-        <node concept="3cpWs8" id="Hg6Endw4S7" role="3cqZAp">
-          <node concept="3cpWsn" id="Hg6Endw4S8" role="3cpWs9">
-            <property role="TrG5h" value="savedFlag" />
-            <property role="3TUv4t" value="true" />
-            <node concept="10Q1$e" id="Hg6EndyVOk" role="1tU5fm">
-              <node concept="10P_77" id="Hg6Endw4S6" role="10Q1$1" />
-            </node>
-            <node concept="2ShNRf" id="Hg6EndyWLh" role="33vP2m">
-              <node concept="3$_iS1" id="Hg6EndyWDn" role="2ShVmc">
-                <node concept="3$GHV9" id="Hg6EndyWTs" role="3$GQph">
-                  <node concept="3cmrfG" id="Hg6EndyX9B" role="3$I4v7">
-                    <property role="3cmrfH" value="1" />
-                  </node>
-                </node>
-                <node concept="10P_77" id="Hg6EndyWDo" role="3$_nBY" />
-              </node>
-            </node>
-          </node>
-        </node>
-        <node concept="SfApY" id="Hg6EndBkkK" role="3cqZAp">
-          <node concept="3clFbS" id="Hg6Endw6R6" role="SfCbr">
-            <node concept="3clFbH" id="Hg6EndB3Pr" role="3cqZAp" />
-            <node concept="3clFbF" id="Hg6EndB5PB" role="3cqZAp">
-              <node concept="2OqwBi" id="Hg6EndBev0" role="3clFbG">
-                <node concept="2OqwBi" id="Hg6EndBgeI" role="2Oq$k0">
-                  <node concept="2OqwBi" id="Hg6EndB7s3" role="2Oq$k0">
-                    <node concept="2OqwBi" id="Hg6EndBZIL" role="2Oq$k0">
-                      <node concept="2OqwBi" id="Hg6EndB63M" role="2Oq$k0">
-                        <node concept="2YIFZM" id="Hg6EndB5PD" role="2Oq$k0">
-                          <ref role="37wK5l" to="unkn:~Completable.complete():io.reactivex.Completable" resolve="complete" />
-                          <ref role="1Pybhc" to="unkn:~Completable" resolve="Completable" />
-                        </node>
-                        <node concept="liA8E" id="Hg6EndB6q6" role="2OqNvi">
-                          <ref role="37wK5l" to="unkn:~Completable.startWith(io.reactivex.CompletableSource):io.reactivex.Completable" resolve="startWith" />
-                          <node concept="2YIFZM" id="Hg6EndB6Lu" role="37wK5m">
-                            <ref role="37wK5l" to="unkn:~Completable.fromRunnable(java.lang.Runnable):io.reactivex.Completable" resolve="fromRunnable" />
-                            <ref role="1Pybhc" to="unkn:~Completable" resolve="Completable" />
-                            <node concept="1bVj0M" id="Hg6EndB75V" role="37wK5m">
-                              <node concept="3clFbS" id="Hg6EndB75W" role="1bW5cS">
-                                <node concept="3clFbH" id="Hg6EndB79W" role="3cqZAp" />
-                                <node concept="3clFbF" id="Hg6EndB7dZ" role="3cqZAp">
-                                  <node concept="37vLTI" id="Hg6EndB7e0" role="3clFbG">
-                                    <node concept="2OqwBi" id="Hg6EndB7e1" role="37vLTx">
-                                      <node concept="2YIFZM" id="Hg6EndB7e2" role="2Oq$k0">
-                                        <ref role="1Pybhc" to="w1kc:~ModelAccess" resolve="ModelAccess" />
-                                        <ref role="37wK5l" to="w1kc:~ModelAccess.instance():jetbrains.mps.smodel.ModelAccess" resolve="instance" />
-                                      </node>
-                                      <node concept="liA8E" id="Hg6EndB7e3" role="2OqNvi">
-                                        <ref role="37wK5l" to="w1kc:~ModelAccess.setReadEnabledFlag(boolean):boolean" resolve="setReadEnabledFlag" />
-                                        <node concept="3clFbT" id="Hg6EndB7e4" role="37wK5m">
-                                          <property role="3clFbU" value="true" />
-                                        </node>
-                                      </node>
-                                    </node>
-                                    <node concept="AH0OO" id="Hg6EndB7e5" role="37vLTJ">
-                                      <node concept="3cmrfG" id="Hg6EndB7e6" role="AHEQo">
-                                        <property role="3cmrfH" value="0" />
-                                      </node>
-                                      <node concept="37vLTw" id="Hg6EndB7e7" role="AHHXb">
-                                        <ref role="3cqZAo" node="Hg6Endw4S8" resolve="savedFlag" />
-                                      </node>
-                                    </node>
-                                  </node>
-                                </node>
-                                <node concept="3clFbH" id="Hg6EndB79Y" role="3cqZAp" />
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                      <node concept="liA8E" id="Hg6EndC0e_" role="2OqNvi">
-                        <ref role="37wK5l" to="unkn:~Completable.subscribeOn(io.reactivex.Scheduler):io.reactivex.Completable" resolve="subscribeOn" />
-                        <node concept="2YIFZM" id="Hg6EndC1AE" role="37wK5m">
-                          <ref role="37wK5l" to="m4y7:~Schedulers.single():io.reactivex.Scheduler" resolve="single" />
-                          <ref role="1Pybhc" to="m4y7:~Schedulers" resolve="Schedulers" />
-                        </node>
-                      </node>
-                    </node>
-                    <node concept="liA8E" id="Hg6EndB85r" role="2OqNvi">
-                      <ref role="37wK5l" to="unkn:~Completable.andThen(io.reactivex.CompletableSource):io.reactivex.Completable" resolve="andThen" />
-                      <node concept="2OqwBi" id="Hg6EndBe2z" role="37wK5m">
-                        <node concept="37vLTw" id="Hg6EndBe2$" role="2Oq$k0">
-                          <ref role="3cqZAo" node="7y50OW6XU82" resolve="helper" />
-                        </node>
-                        <node concept="liA8E" id="Hg6EndBe2_" role="2OqNvi">
-                          <ref role="37wK5l" node="2mbQB8J5m$l" resolve="scheduleExecute" />
-                          <node concept="2YIFZM" id="Hg6EndDbMD" role="37wK5m">
-                            <ref role="1Pybhc" to="m4y7:~Schedulers" resolve="Schedulers" />
-                            <ref role="37wK5l" to="m4y7:~Schedulers.single():io.reactivex.Scheduler" resolve="single" />
-                          </node>
-                        </node>
-                      </node>
-                    </node>
-                  </node>
-                  <node concept="liA8E" id="Hg6EndBhdo" role="2OqNvi">
-                    <ref role="37wK5l" to="unkn:~Completable.doFinally(io.reactivex.functions.Action):io.reactivex.Completable" resolve="doFinally" />
-                    <node concept="1bVj0M" id="Hg6EndBhKR" role="37wK5m">
-                      <node concept="3clFbS" id="Hg6EndBhKS" role="1bW5cS">
-                        <node concept="3clFbH" id="Hg6EndBi4V" role="3cqZAp" />
-                        <node concept="3clFbF" id="Hg6EndBidM" role="3cqZAp">
-                          <node concept="2OqwBi" id="Hg6EndBidN" role="3clFbG">
-                            <node concept="2YIFZM" id="Hg6EndBidO" role="2Oq$k0">
-                              <ref role="1Pybhc" to="w1kc:~ModelAccess" resolve="ModelAccess" />
-                              <ref role="37wK5l" to="w1kc:~ModelAccess.instance():jetbrains.mps.smodel.ModelAccess" resolve="instance" />
-                            </node>
-                            <node concept="liA8E" id="Hg6EndBidP" role="2OqNvi">
-                              <ref role="37wK5l" to="w1kc:~ModelAccess.setReadEnabledFlag(boolean):boolean" resolve="setReadEnabledFlag" />
-                              <node concept="AH0OO" id="Hg6EndBidQ" role="37wK5m">
-                                <node concept="3cmrfG" id="Hg6EndBidR" role="AHEQo">
-                                  <property role="3cmrfH" value="0" />
-                                </node>
-                                <node concept="37vLTw" id="Hg6EndBidS" role="AHHXb">
-                                  <ref role="3cqZAo" node="Hg6Endw4S8" resolve="savedFlag" />
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="3clFbH" id="Hg6EndBi7v" role="3cqZAp" />
-                      </node>
-                    </node>
-                  </node>
-                </node>
-                <node concept="liA8E" id="Hg6EndBfCU" role="2OqNvi">
-                  <ref role="37wK5l" to="unkn:~Completable.blockingAwait():void" resolve="blockingAwait" />
-                </node>
-              </node>
-            </node>
-            <node concept="3clFbH" id="Hg6Endwf5W" role="3cqZAp" />
-          </node>
-          <node concept="TDmWw" id="Hg6EndAeLa" role="TEbGg">
-            <node concept="3cpWsn" id="Hg6EndAeLb" role="TDEfY">
-              <property role="TrG5h" value="exception" />
-              <node concept="3uibUv" id="Hg6EndAfh$" role="1tU5fm">
-                <ref role="3uigEE" to="wyt6:~Exception" resolve="Exception" />
-              </node>
-            </node>
-            <node concept="3clFbS" id="Hg6EndAeLd" role="TDEfX">
-              <node concept="3SKdUt" id="Hg6EndB0SS" role="3cqZAp">
-                <node concept="3SKdUq" id="Hg6EndB0SU" role="3SKWNk">
-                  <property role="3SKdUp" value="FIXME: should probably report this exception to the caller (change checkTypes' contract)" />
-                </node>
-              </node>
-              <node concept="34ab3g" id="Hg6EndAfF$" role="3cqZAp">
-                <property role="35gtTG" value="warn" />
-                <property role="34fQS0" value="true" />
-                <node concept="Xl_RD" id="Hg6EndAfFA" role="34bqiv">
-                  <property role="Xl_RC" value="Exception while typechecking" />
-                </node>
-                <node concept="37vLTw" id="Hg6EndAfFC" role="34bMjA">
-                  <ref role="3cqZAo" node="Hg6EndAeLb" resolve="exception" />
-                </node>
-                <node concept="37vLTw" id="Hg6EndAgh8" role="RQzLk">
-                  <ref role="3cqZAo" node="7y50OW6XU7s" resolve="prj" />
-                </node>
-              </node>
-              <node concept="3clFbH" id="Hg6EndAfnW" role="3cqZAp" />
-            </node>
-          </node>
-        </node>
-        <node concept="3clFbH" id="Hg6Endvgnu" role="3cqZAp" />
-        <node concept="3clFbF" id="7y50OW6Yrqq" role="3cqZAp">
-          <node concept="2ShNRf" id="7y50OW6Yrqm" role="3clFbG">
-            <node concept="YeOm9" id="7y50OW6Ytrt" role="2ShVmc">
-              <node concept="1Y3b0j" id="7y50OW6Ytrw" role="YeSDq">
-                <property role="2bfB8j" value="true" />
-                <ref role="1Y3XeK" node="7y50OW6XXpr" resolve="LaunchTypechecking.TypecheckingResult" />
-                <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
-                <node concept="3Tm1VV" id="7y50OW6Ytrx" role="1B3o_S" />
-                <node concept="3clFb_" id="7y50OW6Ytry" role="jymVt">
-                  <property role="1EzhhJ" value="false" />
-                  <property role="TrG5h" value="error" />
-                  <node concept="17QB3L" id="7y50OW6Ytrz" role="3clF45" />
-                  <node concept="3Tm1VV" id="7y50OW6Ytr$" role="1B3o_S" />
-                  <node concept="3clFbS" id="7y50OW6YtrA" role="3clF47">
-                    <node concept="3clFbF" id="7y50OW6YuTx" role="3cqZAp">
-                      <node concept="AH0OO" id="7y50OW6Yvuc" role="3clFbG">
-                        <node concept="3cmrfG" id="7y50OW6YvUh" role="AHEQo">
-                          <property role="3cmrfH" value="0" />
-                        </node>
-                        <node concept="37vLTw" id="7y50OW6YuTw" role="AHHXb">
-                          <ref role="3cqZAo" node="7y50OW6XU7y" resolve="errors" />
-                        </node>
-                      </node>
-                    </node>
-                  </node>
-                </node>
-                <node concept="3clFb_" id="7y50OW6YtrC" role="jymVt">
-                  <property role="1EzhhJ" value="false" />
-                  <property role="TrG5h" value="getType" />
-                  <node concept="37vLTG" id="7y50OW6YtrD" role="3clF46">
-                    <property role="TrG5h" value="node" />
-                    <node concept="3Tqbb2" id="7y50OW6YtrE" role="1tU5fm" />
-                  </node>
-                  <node concept="3uibUv" id="7y50OW6YtrF" role="3clF45">
-                    <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="TreeForm" />
-                  </node>
-                  <node concept="3Tm1VV" id="7y50OW6YtrG" role="1B3o_S" />
-                  <node concept="3clFbS" id="7y50OW6YtrI" role="3clF47">
-                    <node concept="3clFbF" id="7y50OW6Yx01" role="3cqZAp">
-                      <node concept="2OqwBi" id="7y50OW6YxsM" role="3clFbG">
-                        <node concept="37vLTw" id="7y50OW6Yx00" role="2Oq$k0">
-                          <ref role="3cqZAo" node="6kREIVkUaqY" resolve="runTypechecking" />
-                        </node>
-                        <node concept="liA8E" id="7y50OW6YVID" role="2OqNvi">
-                          <ref role="37wK5l" node="7y50OW6WPl4" resolve="getTypeTerm" />
-                          <node concept="37vLTw" id="7y50OW6YWTQ" role="37wK5m">
-                            <ref role="3cqZAo" node="7y50OW6YtrD" resolve="node" />
-                          </node>
-                        </node>
-                      </node>
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-        </node>
-      </node>
-    </node>
-    <node concept="2tJIrI" id="1N_0WA5Jy0_" role="jymVt" />
-    <node concept="3Tm1VV" id="1N_0WA5JxZP" role="1B3o_S" />
-  </node>
   <node concept="312cEu" id="4n$QnzZKysF">
     <property role="TrG5h" value="TreeTableExpander" />
     <property role="2bfB8j" value="true" />
@@ -28122,6 +23851,7 @@
   </node>
   <node concept="312cEu" id="4n$QnzZQkF9">
     <property role="TrG5h" value="ApplicableTemplatesFinder" />
+    <property role="3GE5qa" value="action" />
     <node concept="3Tm1VV" id="4n$QnzZQkFa" role="1B3o_S" />
     <node concept="3uibUv" id="3YJ7yg2MLNM" role="1zkMxy">
       <ref role="3uigEE" to="b2d5:1Fz6CCoeqzM" resolve="BaseFinder" />
@@ -28551,11 +24281,11 @@
             <property role="TrG5h" value="applyTemplatesStep" />
             <property role="3TUv4t" value="true" />
             <node concept="3uibUv" id="6kREIVkWRFk" role="1tU5fm">
-              <ref role="3uigEE" node="1pPth$lAwc0" resolve="ApplyTemplatesStep" />
+              <ref role="3uigEE" to="tj24:1pPth$lAwc0" resolve="ApplyTemplatesStep" />
             </node>
             <node concept="2ShNRf" id="6kREIVkWRFr" role="33vP2m">
               <node concept="1pGfFk" id="6kREIVkWRFs" role="2ShVmc">
-                <ref role="37wK5l" node="1pPth$lDzTR" resolve="ApplyTemplatesStep" />
+                <ref role="37wK5l" to="tj24:1pPth$lDzTR" resolve="ApplyTemplatesStep" />
                 <node concept="37vLTw" id="6kREIVkWRFt" role="37wK5m">
                   <ref role="3cqZAo" node="6kREIVkWLqP" resolve="root" />
                 </node>
@@ -28574,13 +24304,13 @@
           <node concept="2OqwBi" id="6kREIVkX6vO" role="3clFbG">
             <node concept="2ShNRf" id="6kREIVkX8wA" role="2Oq$k0">
               <node concept="1pGfFk" id="6kREIVkX8wB" role="2ShVmc">
-                <ref role="37wK5l" node="1pPth$lK1ZL" resolve="TypecheckingHelper" />
+                <ref role="37wK5l" to="tj24:1pPth$lK1ZL" resolve="TypecheckingHelper" />
                 <node concept="2ShNRf" id="6kREIVkX8wC" role="37wK5m">
                   <node concept="YeOm9" id="6kREIVkX8wD" role="2ShVmc">
                     <node concept="1Y3b0j" id="6kREIVkX8wE" role="YeSDq">
                       <property role="2bfB8j" value="true" />
-                      <ref role="1Y3XeK" node="3F6vMxqaxpm" resolve="TypecheckingHelper.ProgressCallback" />
                       <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
+                      <ref role="1Y3XeK" to="tj24:3F6vMxqaxpm" resolve="TypecheckingHelper.ProgressCallback" />
                       <node concept="3Tm1VV" id="6kREIVkX8wF" role="1B3o_S" />
                       <node concept="3clFb_" id="6kREIVkX8wG" role="jymVt">
                         <property role="TrG5h" value="ok" />
@@ -28608,7 +24338,7 @@
                                       <ref role="3cqZAo" node="6kREIVkWRFq" resolve="applyTemplatesStep" />
                                     </node>
                                     <node concept="liA8E" id="6kREIVkXHO4" role="2OqNvi">
-                                      <ref role="37wK5l" node="20Ay2VeR9qk" resolve="ruleTemplates" />
+                                      <ref role="37wK5l" to="tj24:20Ay2VeR9qk" resolve="ruleTemplates" />
                                     </node>
                                   </node>
                                   <node concept="2OqwBi" id="6kREIVkXHO5" role="37wK5m">
@@ -28756,7 +24486,7 @@
               </node>
             </node>
             <node concept="liA8E" id="6kREIVkX6vQ" role="2OqNvi">
-              <ref role="37wK5l" node="1pPth$lNVW2" resolve="executeAsync" />
+              <ref role="37wK5l" to="tj24:1pPth$lNVW2" resolve="executeAsync" />
             </node>
           </node>
         </node>
@@ -29728,6 +25458,7 @@
   </node>
   <node concept="312cEu" id="1G9MbtSGvLs">
     <property role="TrG5h" value="NodePrinter" />
+    <property role="3GE5qa" value="trace" />
     <node concept="2tJIrI" id="6wS_caAMbNU" role="jymVt" />
     <node concept="312cEg" id="6wS_caAMdTZ" role="jymVt">
       <property role="TrG5h" value="foreignReferencePattern" />
@@ -31312,6 +27043,7 @@
   <node concept="312cEu" id="3gJBs5s$bxr">
     <property role="2bfB8j" value="false" />
     <property role="TrG5h" value="DefaultVariableSymbol" />
+    <property role="3GE5qa" value="trace" />
     <node concept="3clFb_" id="3gJBs5s$cVK" role="jymVt">
       <property role="1EzhhJ" value="false" />
       <property role="TrG5h" value="variableSymbol" />
@@ -31360,1490 +27092,6 @@
       </node>
     </node>
   </node>
-  <node concept="312cEu" id="1pPth$lAwc0">
-    <property role="2bfB8j" value="false" />
-    <property role="TrG5h" value="ApplyTemplatesStep" />
-    <property role="3GE5qa" value="typechecking.step" />
-    <node concept="3Tm1VV" id="3F6vMxq$KGN" role="1B3o_S" />
-    <node concept="2tJIrI" id="6kREIVkR068" role="jymVt" />
-    <node concept="3clFbW" id="1pPth$lDzTR" role="jymVt">
-      <node concept="3cqZAl" id="1pPth$lDzTT" role="3clF45" />
-      <node concept="3Tm1VV" id="6kREIVkRsAD" role="1B3o_S" />
-      <node concept="3clFbS" id="1pPth$lDzTV" role="3clF47">
-        <node concept="3clFbF" id="1pPth$lD$Fx" role="3cqZAp">
-          <node concept="37vLTI" id="1pPth$lD$Fz" role="3clFbG">
-            <node concept="2OqwBi" id="1pPth$lD$FB" role="37vLTJ">
-              <node concept="Xjq3P" id="1pPth$lD$FE" role="2Oq$k0" />
-              <node concept="2OwXpG" id="1pPth$lD$FA" role="2OqNvi">
-                <ref role="2Oxat5" node="1pPth$lD$Ft" resolve="root" />
-              </node>
-            </node>
-            <node concept="37vLTw" id="1pPth$lD$FF" role="37vLTx">
-              <ref role="3cqZAo" node="1pPth$lD$C7" resolve="root" />
-            </node>
-          </node>
-        </node>
-        <node concept="3clFbF" id="6kREIVkLEGx" role="3cqZAp">
-          <node concept="37vLTI" id="6kREIVkLEGz" role="3clFbG">
-            <node concept="2OqwBi" id="6kREIVkLJxF" role="37vLTJ">
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-          </node>
-        </node>
-      </node>
-    </node>
-    <node concept="312cEg" id="3F6vMxqv_px" role="jymVt">
-      <property role="TrG5h" value="msgtrace" />
-      <node concept="3Tm6S6" id="6kREIVkHFzh" role="1B3o_S" />
-      <node concept="3uibUv" id="3F6vMxqv_pq" role="1tU5fm">
-        <ref role="3uigEE" node="4i4XGQZlbGA" resolve="MessageViewTracer" />
-      </node>
-    </node>
-    <node concept="312cEg" id="1N_0WA5HPC_" role="jymVt">
-      <property role="TrG5h" value="showTrace" />
-      <node concept="3Tm6S6" id="1N_0WA5HPCA" role="1B3o_S" />
-      <node concept="10P_77" id="1N_0WA5HPCC" role="1tU5fm" />
-    </node>
-    <node concept="312cEg" id="6kREIVkLUMS" role="jymVt">
-      <property role="TrG5h" value="mpsProject" />
-      <node concept="3Tm6S6" id="6kREIVkLUMT" role="1B3o_S" />
-      <node concept="3uibUv" id="6kREIVkLUMV" role="1tU5fm">
-        <ref role="3uigEE" to="z1c4:~MPSProject" resolve="MPSProject" />
-      </node>
-    </node>
-  </node>
   <node concept="312cEu" id="1pPth$lC1vN">
     <property role="2bfB8j" value="false" />
     <property role="TrG5h" value="HighlightingStep" />
@@ -32916,7 +27164,7 @@
         <node concept="3uibUv" id="Hg6EncbkRT" role="1tU5fm">
           <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
           <node concept="3uibUv" id="Hg6EncbkS0" role="11_B2D">
-            <ref role="3uigEE" node="1pPth$lBNWG" resolve="EvaluateRulesStep" />
+            <ref role="3uigEE" to="tj24:1pPth$lBNWG" resolve="EvaluateRulesStep" />
           </node>
         </node>
       </node>
@@ -32945,7 +27193,7 @@
                 <node concept="37vLTG" id="Hg6EncbrFm" role="1bW2Oz">
                   <property role="TrG5h" value="prev" />
                   <node concept="3uibUv" id="Hg6Encbstd" role="1tU5fm">
-                    <ref role="3uigEE" node="1pPth$lBNWG" resolve="EvaluateRulesStep" />
+                    <ref role="3uigEE" to="tj24:1pPth$lBNWG" resolve="EvaluateRulesStep" />
                   </node>
                 </node>
                 <node concept="3clFbS" id="Hg6EncbqUN" role="1bW5cS">
@@ -32999,17 +27247,17 @@
                               <node concept="3cpWsn" id="Hg6EncbtTw" role="3cpWs9">
                                 <property role="TrG5h" value="typesCollector" />
                                 <node concept="3uibUv" id="Hg6EncbtTx" role="1tU5fm">
-                                  <ref role="3uigEE" to="hano:6HT7BWBSFOV" resolve="TypeCollector" />
+                                  <ref role="3uigEE" to="tj24:6HT7BWBSFOV" resolve="TypeCollector" />
                                 </node>
                                 <node concept="2ShNRf" id="Hg6EncbtTy" role="33vP2m">
                                   <node concept="1pGfFk" id="Hg6EncbtTz" role="2ShVmc">
-                                    <ref role="37wK5l" to="hano:1CcQBrQmOiH" resolve="TypeCollector" />
+                                    <ref role="37wK5l" to="tj24:1CcQBrQmOiH" resolve="TypeCollector" />
                                     <node concept="2OqwBi" id="Hg6EncbtT$" role="37wK5m">
                                       <node concept="37vLTw" id="Hg6EncbtT_" role="2Oq$k0">
                                         <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
                                       </node>
                                       <node concept="liA8E" id="6kREIVl1ilt" role="2OqNvi">
-                                        <ref role="37wK5l" node="6kREIVl0T6d" resolve="getStoreView" />
+                                        <ref role="37wK5l" to="tj24:6kREIVl0T6d" resolve="getStoreView" />
                                       </node>
                                     </node>
                                   </node>
@@ -33027,7 +27275,7 @@
                                         <ref role="3cqZAo" node="Hg6EncbtTw" resolve="typesCollector" />
                                       </node>
                                       <node concept="liA8E" id="Hg6EncbtTI" role="2OqNvi">
-                                        <ref role="37wK5l" to="hano:1CcQBrQmO_H" resolve="typeNode" />
+                                        <ref role="37wK5l" to="tj24:1CcQBrQmO_H" resolve="typeNode" />
                                         <node concept="37vLTw" id="Hg6EncbtTJ" role="37wK5m">
                                           <ref role="3cqZAo" node="Hg6EncbtTY" resolve="ref" />
                                         </node>
@@ -33079,7 +27327,7 @@
                                   <ref role="3cqZAo" node="Hg6EncbtTw" resolve="typesCollector" />
                                 </node>
                                 <node concept="liA8E" id="Hg6EncbtU2" role="2OqNvi">
-                                  <ref role="37wK5l" to="hano:1CcQBrQnllM" resolve="typedNodeReferences" />
+                                  <ref role="37wK5l" to="tj24:1CcQBrQnllM" resolve="typedNodeReferences" />
                                 </node>
                               </node>
                             </node>
@@ -33094,7 +27342,7 @@
                                         <ref role="3cqZAo" node="Hg6EncbtTw" resolve="typesCollector" />
                                       </node>
                                       <node concept="liA8E" id="Hg6EncbtUa" role="2OqNvi">
-                                        <ref role="37wK5l" to="hano:5tpkEj3JHbg" resolve="error" />
+                                        <ref role="37wK5l" to="tj24:5tpkEj3JHbg" resolve="error" />
                                         <node concept="37vLTw" id="Hg6EncbtUb" role="37wK5m">
                                           <ref role="3cqZAo" node="Hg6EncbtUn" resolve="ref" />
                                         </node>
@@ -33139,7 +27387,7 @@
                                   <ref role="3cqZAo" node="Hg6EncbtTw" resolve="typesCollector" />
                                 </node>
                                 <node concept="liA8E" id="Hg6EncbtUr" role="2OqNvi">
-                                  <ref role="37wK5l" to="hano:5tpkEj3JFVt" resolve="errorNodeReferences" />
+                                  <ref role="37wK5l" to="tj24:5tpkEj3JFVt" resolve="errorNodeReferences" />
                                 </node>
                               </node>
                             </node>
@@ -33180,49 +27428,68 @@
                         </node>
                       </node>
                       <node concept="3clFbH" id="Hg6EncbtUI" role="3cqZAp" />
-                      <node concept="3clFbF" id="Hg6EncbtUJ" role="3cqZAp">
-                        <node concept="2YIFZM" id="Hg6EncbtUK" role="3clFbG">
-                          <ref role="1Pybhc" node="41ox5VnpFrR" resolve="MarkPlugin" />
-                          <ref role="37wK5l" node="41ox5VnqukP" resolve="markTypesAndErrors" />
-                          <node concept="37vLTw" id="6kREIVkNRWj" role="37wK5m">
-                            <ref role="3cqZAo" node="6kREIVkNFsd" resolve="mpsProject" />
-                          </node>
-                          <node concept="2OqwBi" id="Hg6EncbtUO" role="37wK5m">
-                            <node concept="Xjq3P" id="Hg6EncbtUP" role="2Oq$k0" />
-                            <node concept="2OwXpG" id="Hg6EncbtUQ" role="2OqNvi">
-                              <ref role="2Oxat5" node="1pPth$lGU8f" resolve="editorComponent" />
-                            </node>
-                          </node>
-                          <node concept="2OqwBi" id="Hg6EncbtUR" role="37wK5m">
-                            <node concept="2OqwBi" id="Hg6EncbtUS" role="2Oq$k0">
-                              <node concept="Xjq3P" id="Hg6EncbtUT" role="2Oq$k0" />
-                              <node concept="2OwXpG" id="Hg6EncbtUU" role="2OqNvi">
-                                <ref role="2Oxat5" node="1pPth$lGU8f" resolve="editorComponent" />
+                      <node concept="3clFbJ" id="6IQb_Rx8n8I" role="3cqZAp">
+                        <node concept="3clFbS" id="6IQb_Rx8n8K" role="3clFbx">
+                          <node concept="3clFbF" id="Hg6EncbtUJ" role="3cqZAp">
+                            <node concept="2YIFZM" id="Hg6EncbtUK" role="3clFbG">
+                              <ref role="1Pybhc" node="41ox5VnpFrR" resolve="MarkPlugin" />
+                              <ref role="37wK5l" node="41ox5VnqukP" resolve="markTypesAndErrors" />
+                              <node concept="37vLTw" id="6kREIVkNRWj" role="37wK5m">
+                                <ref role="3cqZAo" node="6kREIVkNFsd" resolve="mpsProject" />
+                              </node>
+                              <node concept="2OqwBi" id="Hg6EncbtUO" role="37wK5m">
+                                <node concept="Xjq3P" id="Hg6EncbtUP" role="2Oq$k0" />
+                                <node concept="2OwXpG" id="Hg6EncbtUQ" role="2OqNvi">
+                                  <ref role="2Oxat5" node="1pPth$lGU8f" resolve="editorComponent" />
+                                </node>
+                              </node>
+                              <node concept="2OqwBi" id="Hg6EncbtUR" role="37wK5m">
+                                <node concept="2OqwBi" id="Hg6EncbtUS" role="2Oq$k0">
+                                  <node concept="Xjq3P" id="Hg6EncbtUT" role="2Oq$k0" />
+                                  <node concept="2OwXpG" id="Hg6EncbtUU" role="2OqNvi">
+                                    <ref role="2Oxat5" node="1pPth$lGU8f" resolve="editorComponent" />
+                                  </node>
+                                </node>
+                                <node concept="liA8E" id="Hg6EncbtUV" role="2OqNvi">
+                                  <ref role="37wK5l" to="exr9:~EditorComponent.getEditedNode():org.jetbrains.mps.openapi.model.SNode" resolve="getEditedNode" />
+                                </node>
+                              </node>
+                              <node concept="2OqwBi" id="Hg6EncbtUW" role="37wK5m">
+                                <node concept="2OwXpG" id="Hg6EncbtUX" role="2OqNvi">
+                                  <ref role="2Oxat5" node="52a_GfIIGna" resolve="typeNodes" />
+                                </node>
+                                <node concept="Xjq3P" id="Hg6EncbtUY" role="2Oq$k0" />
+                              </node>
+                              <node concept="2OqwBi" id="Hg6EncbtUZ" role="37wK5m">
+                                <node concept="Xjq3P" id="Hg6EncbtV0" role="2Oq$k0" />
+                                <node concept="2OwXpG" id="Hg6EncbtV1" role="2OqNvi">
+                                  <ref role="2Oxat5" node="5tpkEj3KeIf" resolve="errors" />
+                                </node>
+                              </node>
+                              <node concept="2OqwBi" id="Hg6EncbtV2" role="37wK5m">
+                                <node concept="1eOMI4" id="6IQb_Rx8t5B" role="2Oq$k0">
+                                  <node concept="10QFUN" id="6IQb_Rx8t5$" role="1eOMHV">
+                                    <node concept="3uibUv" id="6IQb_Rx8wCH" role="10QFUM">
+                                      <ref role="3uigEE" node="55Q$YFtIVEP" resolve="EvaluateRulesWithTraceStep" />
+                                    </node>
+                                    <node concept="37vLTw" id="6IQb_Rx8t5D" role="10QFUP">
+                                      <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
+                                    </node>
+                                  </node>
+                                </node>
+                                <node concept="liA8E" id="6kREIVl1k82" role="2OqNvi">
+                                  <ref role="37wK5l" node="6kREIVl0T6j" resolve="getTraceTabs" />
+                                </node>
                               </node>
                             </node>
-                            <node concept="liA8E" id="Hg6EncbtUV" role="2OqNvi">
-                              <ref role="37wK5l" to="exr9:~EditorComponent.getEditedNode():org.jetbrains.mps.openapi.model.SNode" resolve="getEditedNode" />
-                            </node>
                           </node>
-                          <node concept="2OqwBi" id="Hg6EncbtUW" role="37wK5m">
-                            <node concept="2OwXpG" id="Hg6EncbtUX" role="2OqNvi">
-                              <ref role="2Oxat5" node="52a_GfIIGna" resolve="typeNodes" />
-                            </node>
-                            <node concept="Xjq3P" id="Hg6EncbtUY" role="2Oq$k0" />
+                        </node>
+                        <node concept="2ZW3vV" id="6IQb_Rx8pVG" role="3clFbw">
+                          <node concept="3uibUv" id="6IQb_Rx8ru0" role="2ZW6by">
+                            <ref role="3uigEE" node="55Q$YFtIVEP" resolve="EvaluateRulesWithTraceStep" />
                           </node>
-                          <node concept="2OqwBi" id="Hg6EncbtUZ" role="37wK5m">
-                            <node concept="Xjq3P" id="Hg6EncbtV0" role="2Oq$k0" />
-                            <node concept="2OwXpG" id="Hg6EncbtV1" role="2OqNvi">
-                              <ref role="2Oxat5" node="5tpkEj3KeIf" resolve="errors" />
-                            </node>
-                          </node>
-                          <node concept="2OqwBi" id="Hg6EncbtV2" role="37wK5m">
-                            <node concept="37vLTw" id="Hg6EncbtV3" role="2Oq$k0">
-                              <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
-                            </node>
-                            <node concept="liA8E" id="6kREIVl1k82" role="2OqNvi">
-                              <ref role="37wK5l" node="6kREIVl0T6j" resolve="getTraceTabs" />
-                            </node>
+                          <node concept="37vLTw" id="6IQb_Rx8owj" role="2ZW6bz">
+                            <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
                           </node>
                         </node>
                       </node>
@@ -33234,7 +27501,7 @@
                           <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
                         </node>
                         <node concept="liA8E" id="6kREIVl1gyr" role="2OqNvi">
-                          <ref role="37wK5l" node="6kREIVl0T6d" resolve="getStoreView" />
+                          <ref role="37wK5l" to="tj24:6kREIVl0T6d" resolve="getStoreView" />
                         </node>
                       </node>
                     </node>
@@ -33243,79 +27510,105 @@
                   <node concept="1QHqEK" id="Hg6EncbtWn" role="3cqZAp">
                     <node concept="1QHqEC" id="Hg6EncbtWo" role="1QHqEI">
                       <node concept="3clFbS" id="Hg6EncbtWp" role="1bW5cS">
-                        <node concept="3clFbJ" id="Hg6EncbtWq" role="3cqZAp">
-                          <node concept="3clFbS" id="Hg6EncbtWr" role="3clFbx">
-                            <node concept="1DcWWT" id="Hg6EncbtWs" role="3cqZAp">
-                              <node concept="3clFbS" id="Hg6EncbtWt" role="2LFqv$">
-                                <node concept="3SKdUt" id="Hg6EncbtWu" role="3cqZAp">
-                                  <node concept="3SKdUq" id="Hg6EncbtWv" role="3SKWNk">
-                                    <property role="3SKdUp" value="actually show the trace" />
-                                  </node>
-                                </node>
-                                <node concept="3clFbF" id="Hg6EncbtWw" role="3cqZAp">
-                                  <node concept="2OqwBi" id="Hg6EncbtWx" role="3clFbG">
-                                    <node concept="37vLTw" id="Hg6EncbtWy" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="Hg6EncbtWD" resolve="tt" />
+                        <node concept="3clFbJ" id="6IQb_Rx8A1H" role="3cqZAp">
+                          <node concept="3clFbS" id="6IQb_Rx8A1J" role="3clFbx">
+                            <node concept="3clFbJ" id="Hg6EncbtWq" role="3cqZAp">
+                              <node concept="3clFbS" id="Hg6EncbtWr" role="3clFbx">
+                                <node concept="1DcWWT" id="Hg6EncbtWs" role="3cqZAp">
+                                  <node concept="3clFbS" id="Hg6EncbtWt" role="2LFqv$">
+                                    <node concept="3SKdUt" id="Hg6EncbtWu" role="3cqZAp">
+                                      <node concept="3SKdUq" id="Hg6EncbtWv" role="3SKWNk">
+                                        <property role="3SKdUp" value="actually show the trace" />
+                                      </node>
                                     </node>
-                                    <node concept="liA8E" id="Hg6EncbtWz" role="2OqNvi">
-                                      <ref role="37wK5l" node="6_UQWSXcgLF" resolve="setContextEditorComponent" />
-                                      <node concept="37vLTw" id="Hg6EncbtW$" role="37wK5m">
-                                        <ref role="3cqZAo" node="1pPth$lGU8f" resolve="editorComponent" />
+                                    <node concept="3clFbF" id="Hg6EncbtWw" role="3cqZAp">
+                                      <node concept="2OqwBi" id="Hg6EncbtWx" role="3clFbG">
+                                        <node concept="37vLTw" id="Hg6EncbtWy" role="2Oq$k0">
+                                          <ref role="3cqZAo" node="Hg6EncbtWD" resolve="tt" />
+                                        </node>
+                                        <node concept="liA8E" id="Hg6EncbtWz" role="2OqNvi">
+                                          <ref role="37wK5l" node="6_UQWSXcgLF" resolve="setContextEditorComponent" />
+                                          <node concept="37vLTw" id="Hg6EncbtW$" role="37wK5m">
+                                            <ref role="3cqZAo" node="1pPth$lGU8f" resolve="editorComponent" />
+                                          </node>
+                                        </node>
+                                      </node>
+                                    </node>
+                                    <node concept="3clFbF" id="Hg6EncbtW_" role="3cqZAp">
+                                      <node concept="2OqwBi" id="Hg6EncbtWA" role="3clFbG">
+                                        <node concept="37vLTw" id="Hg6EncbtWB" role="2Oq$k0">
+                                          <ref role="3cqZAo" node="Hg6EncbtWD" resolve="tt" />
+                                        </node>
+                                        <node concept="liA8E" id="Hg6EncbtWC" role="2OqNvi">
+                                          <ref role="37wK5l" node="5X6ji59xVZa" resolve="refreshActivation" />
+                                        </node>
                                       </node>
                                     </node>
                                   </node>
-                                </node>
-                                <node concept="3clFbF" id="Hg6EncbtW_" role="3cqZAp">
-                                  <node concept="2OqwBi" id="Hg6EncbtWA" role="3clFbG">
-                                    <node concept="37vLTw" id="Hg6EncbtWB" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="Hg6EncbtWD" resolve="tt" />
+                                  <node concept="3cpWsn" id="Hg6EncbtWD" role="1Duv9x">
+                                    <property role="TrG5h" value="tt" />
+                                    <node concept="3uibUv" id="Hg6EncbtWE" role="1tU5fm">
+                                      <ref role="3uigEE" node="5X6ji59z5Fa" resolve="TraceTab" />
                                     </node>
-                                    <node concept="liA8E" id="Hg6EncbtWC" role="2OqNvi">
-                                      <ref role="37wK5l" node="5X6ji59xVZa" resolve="refreshActivation" />
+                                  </node>
+                                  <node concept="2OqwBi" id="Hg6EncbtWF" role="1DdaDG">
+                                    <node concept="1eOMI4" id="6IQb_Rx8I_p" role="2Oq$k0">
+                                      <node concept="10QFUN" id="6IQb_Rx8I_m" role="1eOMHV">
+                                        <node concept="3uibUv" id="6IQb_Rx8Kbc" role="10QFUM">
+                                          <ref role="3uigEE" node="55Q$YFtIVEP" resolve="EvaluateRulesWithTraceStep" />
+                                        </node>
+                                        <node concept="37vLTw" id="6IQb_Rx8I_r" role="10QFUP">
+                                          <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
+                                        </node>
+                                      </node>
+                                    </node>
+                                    <node concept="liA8E" id="6kREIVl1eJs" role="2OqNvi">
+                                      <ref role="37wK5l" node="6kREIVl0T6j" resolve="getTraceTabs" />
+                                    </node>
+                                  </node>
+                                </node>
+                                <node concept="3clFbF" id="Hg6EncbtWI" role="3cqZAp">
+                                  <node concept="2OqwBi" id="Hg6EncbtWJ" role="3clFbG">
+                                    <node concept="2YIFZM" id="Hg6EncbtWK" role="2Oq$k0">
+                                      <ref role="1Pybhc" node="7nPD14Nbbbe" resolve="TraceComponent" />
+                                      <ref role="37wK5l" node="7nPD14Nboty" resolve="get" />
+                                      <node concept="37vLTw" id="6kREIVkNKhb" role="37wK5m">
+                                        <ref role="3cqZAo" node="6kREIVkNFsd" resolve="mpsProject" />
+                                      </node>
+                                    </node>
+                                    <node concept="liA8E" id="Hg6EncbtWO" role="2OqNvi">
+                                      <ref role="37wK5l" node="Nob1E3CTMt" resolve="showTool" />
                                     </node>
                                   </node>
                                 </node>
                               </node>
-                              <node concept="3cpWsn" id="Hg6EncbtWD" role="1Duv9x">
-                                <property role="TrG5h" value="tt" />
-                                <node concept="3uibUv" id="Hg6EncbtWE" role="1tU5fm">
-                                  <ref role="3uigEE" node="5X6ji59z5Fa" resolve="TraceTab" />
-                                </node>
-                              </node>
-                              <node concept="2OqwBi" id="Hg6EncbtWF" role="1DdaDG">
-                                <node concept="37vLTw" id="Hg6EncbtWG" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
-                                </node>
-                                <node concept="liA8E" id="6kREIVl1eJs" role="2OqNvi">
-                                  <ref role="37wK5l" node="6kREIVl0T6j" resolve="getTraceTabs" />
-                                </node>
-                              </node>
-                            </node>
-                            <node concept="3clFbF" id="Hg6EncbtWI" role="3cqZAp">
-                              <node concept="2OqwBi" id="Hg6EncbtWJ" role="3clFbG">
-                                <node concept="2YIFZM" id="Hg6EncbtWK" role="2Oq$k0">
-                                  <ref role="1Pybhc" node="7nPD14Nbbbe" resolve="TraceComponent" />
-                                  <ref role="37wK5l" node="7nPD14Nboty" resolve="get" />
-                                  <node concept="37vLTw" id="6kREIVkNKhb" role="37wK5m">
-                                    <ref role="3cqZAo" node="6kREIVkNFsd" resolve="mpsProject" />
+                              <node concept="2OqwBi" id="Hg6EncbtWP" role="3clFbw">
+                                <node concept="2OqwBi" id="Hg6EncbtWQ" role="2Oq$k0">
+                                  <node concept="1eOMI4" id="6IQb_Rx8FDd" role="2Oq$k0">
+                                    <node concept="10QFUN" id="6IQb_Rx8FDa" role="1eOMHV">
+                                      <node concept="3uibUv" id="6IQb_Rx8FDf" role="10QFUM">
+                                        <ref role="3uigEE" node="55Q$YFtIVEP" resolve="EvaluateRulesWithTraceStep" />
+                                      </node>
+                                      <node concept="37vLTw" id="6IQb_Rx8FDg" role="10QFUP">
+                                        <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
+                                      </node>
+                                    </node>
+                                  </node>
+                                  <node concept="liA8E" id="6kREIVl1cWI" role="2OqNvi">
+                                    <ref role="37wK5l" node="6kREIVl0T6j" resolve="getTraceTabs" />
                                   </node>
                                 </node>
-                                <node concept="liA8E" id="Hg6EncbtWO" role="2OqNvi">
-                                  <ref role="37wK5l" node="Nob1E3CTMt" resolve="showTool" />
-                                </node>
+                                <node concept="3GX2aA" id="Hg6EncbtWT" role="2OqNvi" />
                               </node>
                             </node>
                           </node>
-                          <node concept="2OqwBi" id="Hg6EncbtWP" role="3clFbw">
-                            <node concept="2OqwBi" id="Hg6EncbtWQ" role="2Oq$k0">
-                              <node concept="37vLTw" id="Hg6EncbtWR" role="2Oq$k0">
-                                <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
-                              </node>
-                              <node concept="liA8E" id="6kREIVl1cWI" role="2OqNvi">
-                                <ref role="37wK5l" node="6kREIVl0T6j" resolve="getTraceTabs" />
-                              </node>
+                          <node concept="2ZW3vV" id="6IQb_Rx8Bgt" role="3clFbw">
+                            <node concept="3uibUv" id="6IQb_Rx8Bgu" role="2ZW6by">
+                              <ref role="3uigEE" node="55Q$YFtIVEP" resolve="EvaluateRulesWithTraceStep" />
+                            </node>
+                            <node concept="37vLTw" id="6IQb_Rx8Bgv" role="2ZW6bz">
+                              <ref role="3cqZAo" node="Hg6EncbrFm" resolve="prev" />
                             </node>
-                            <node concept="3GX2aA" id="Hg6EncbtWT" role="2OqNvi" />
                           </node>
                         </node>
                       </node>
@@ -33385,9 +27678,9 @@
     </node>
     <node concept="3Tm1VV" id="3F6vMxq_2US" role="1B3o_S" />
     <node concept="3uibUv" id="1pPth$lC2Ed" role="1zkMxy">
-      <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
+      <ref role="3uigEE" to="tj24:1pPth$lAzAx" resolve="Step" />
       <node concept="3uibUv" id="YgAcJaVl1F" role="11_B2D">
-        <ref role="3uigEE" node="1pPth$lBNWG" resolve="EvaluateRulesStep" />
+        <ref role="3uigEE" to="tj24:1pPth$lBNWG" resolve="EvaluateRulesStep" />
       </node>
     </node>
     <node concept="312cEg" id="1pPth$lGU8f" role="jymVt">
@@ -33405,435 +27698,272 @@
       </node>
     </node>
   </node>
-  <node concept="312cEu" id="6kREIVk53FE">
-    <property role="2bfB8j" value="false" />
-    <property role="TrG5h" value="ResumeNextStepException" />
+  <node concept="312cEu" id="55Q$YFtIVEP">
     <property role="3GE5qa" value="typechecking.step" />
-    <node concept="2tJIrI" id="6kREIVk59DR" role="jymVt" />
-    <node concept="3clFbW" id="6kREIVk59Wq" role="jymVt">
-      <node concept="3cqZAl" id="6kREIVk59Ws" role="3clF45" />
-      <node concept="3Tm1VV" id="6kREIVk59Wt" role="1B3o_S" />
-      <node concept="3clFbS" id="6kREIVk59Wu" role="3clF47">
-        <node concept="XkiVB" id="6kREIVk5bN0" role="3cqZAp">
-          <ref role="37wK5l" to="wyt6:~RuntimeException.&lt;init&gt;(java.lang.Throwable)" resolve="RuntimeException" />
-          <node concept="37vLTw" id="6kREIVk5c2H" role="37wK5m">
-            <ref role="3cqZAo" node="6kREIVk5ayY" resolve="cause" />
-          </node>
-        </node>
-        <node concept="3clFbF" id="6kREIVk5c3g" role="3cqZAp">
-          <node concept="37vLTI" id="6kREIVk5c3i" role="3clFbG">
-            <node concept="2OqwBi" id="6kREIVk5fYl" role="37vLTJ">
-              <node concept="Xjq3P" id="6kREIVk5ge6" role="2Oq$k0" />
-              <node concept="2OwXpG" id="6kREIVk5fYo" role="2OqNvi">
-                <ref role="2Oxat5" node="6kREIVk5c3c" resolve="failedStep" />
-              </node>
-            </node>
-            <node concept="37vLTw" id="6kREIVk5c3m" role="37vLTx">
-              <ref role="3cqZAo" node="6kREIVk5a5Y" resolve="failedStep" />
-            </node>
-          </node>
+    <property role="TrG5h" value="EvaluateRulesWithTraceStep" />
+    <node concept="2tJIrI" id="55Q$YFtIVLz" role="jymVt" />
+    <node concept="3clFbW" id="55Q$YFtIVZ9" role="jymVt">
+      <node concept="37vLTG" id="55Q$YFtIX9v" role="3clF46">
+        <property role="TrG5h" value="mpsProject" />
+        <node concept="3uibUv" id="55Q$YFtIX9w" role="1tU5fm">
+          <ref role="3uigEE" to="z1c4:~MPSProject" resolve="MPSProject" />
         </node>
       </node>
-      <node concept="37vLTG" id="6kREIVk5a5Y" role="3clF46">
-        <property role="TrG5h" value="failedStep" />
-        <node concept="3uibUv" id="6kREIVk5a5X" role="1tU5fm">
-          <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
-          <node concept="3qTvmN" id="6kREIVk5dVz" role="11_B2D" />
-        </node>
-      </node>
-      <node concept="37vLTG" id="6kREIVk5ayY" role="3clF46">
-        <property role="TrG5h" value="cause" />
-        <node concept="3uibUv" id="6kREIVk5aSL" role="1tU5fm">
-          <ref role="3uigEE" to="wyt6:~Throwable" resolve="Throwable" />
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-      </node>
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-        <node concept="3clFbF" id="6kREIVki$y3" role="3cqZAp">
-          <node concept="37vLTI" id="6kREIVki$y4" role="3clFbG">
-            <node concept="2OqwBi" id="6kREIVki$y5" role="37vLTJ">
-              <node concept="Xjq3P" id="6kREIVki$y6" role="2Oq$k0" />
-              <node concept="2OwXpG" id="6kREIVki$y7" role="2OqNvi">
-                <ref role="2Oxat5" node="6kREIVk5c3c" resolve="failedStep" />
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-            </node>
-          </node>
-        </node>
-      </node>
-      <node concept="37vLTG" id="6kREIVki$y9" role="3clF46">
-        <property role="TrG5h" value="failedStep" />
-        <node concept="3uibUv" id="6kREIVki$ya" role="1tU5fm">
-          <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
-          <node concept="3qTvmN" id="6kREIVki$yb" role="11_B2D" />
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-        <node concept="XkiVB" id="6kREIVkwmRU" role="3cqZAp">
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-            <ref role="3cqZAo" node="6kREIVkwlN0" resolve="message" />
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-      <node concept="37vLTG" id="6kREIVkwjAy" role="3clF46">
-        <property role="TrG5h" value="failedStep" />
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-          <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
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-      <property role="TrG5h" value="failedStep" />
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-        <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
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-      <node concept="3Tm1VV" id="6kREIVk5cLt" role="1B3o_S" />
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-          <node concept="37vLTw" id="6kREIVk5fBb" role="3clFbG">
-            <ref role="3cqZAo" node="6kREIVk5c3c" resolve="failedStep" />
+      <node concept="3cqZAl" id="55Q$YFtIVZb" role="3clF45" />
+      <node concept="3Tm1VV" id="55Q$YFtIVZc" role="1B3o_S" />
+      <node concept="3clFbS" id="55Q$YFtIVZd" role="3clF47">
+        <node concept="XkiVB" id="55Q$YFtIXBZ" role="3cqZAp">
+          <ref role="37wK5l" to="tj24:1pPth$lHpLU" resolve="EvaluateRulesStep" />
+          <node concept="37vLTw" id="55Q$YFtIYbT" role="37wK5m">
+            <ref role="3cqZAo" node="55Q$YFtIX9v" resolve="mpsProject" />
           </node>
         </node>
       </node>
     </node>
-    <node concept="2tJIrI" id="6kREIVk59iv" role="jymVt" />
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-      <node concept="3uibUv" id="6kREIVk5c3f" role="1tU5fm">
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-  <node concept="312cEu" id="1pPth$lAzAx">
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-    <property role="TrG5h" value="Step" />
-    <property role="1sVAO0" value="true" />
-    <property role="3GE5qa" value="typechecking.step" />
-    <node concept="3clFb_" id="Hg6Enc2x8M" role="jymVt">
+    <node concept="2tJIrI" id="55Q$YFtJq2k" role="jymVt" />
+    <node concept="3clFb_" id="Hg6Enc6pha" role="jymVt">
       <property role="TrG5h" value="schedule" />
-      <property role="1EzhhJ" value="true" />
-      <node concept="37vLTG" id="Hg6Enc3Jbw" role="3clF46">
+      <property role="1EzhhJ" value="false" />
+      <node concept="37vLTG" id="Hg6Enc6phb" role="3clF46">
         <property role="TrG5h" value="prevStep" />
-        <node concept="3uibUv" id="Hg6Enc3Olc" role="1tU5fm">
+        <node concept="3uibUv" id="Hg6Enc6phc" role="1tU5fm">
           <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
-          <node concept="16syzq" id="Hg6Enc3OSk" role="11_B2D">
-            <ref role="16sUi3" node="1pPth$lD_uI" resolve="Prev" />
+          <node concept="3uibUv" id="Hg6Enc6phj" role="11_B2D">
+            <ref role="3uigEE" to="tj24:1pPth$lAwc0" resolve="ApplyTemplatesStep" />
           </node>
         </node>
       </node>
-      <node concept="37vLTG" id="6kREIVkMCSD" role="3clF46">
+      <node concept="37vLTG" id="6kREIVkNs$S" role="3clF46">
         <property role="TrG5h" value="subscribeScheduler" />
-        <node concept="3uibUv" id="6kREIVkMJcG" role="1tU5fm">
+        <node concept="3uibUv" id="6kREIVkNs$T" role="1tU5fm">
           <ref role="3uigEE" to="unkn:~Scheduler" resolve="Scheduler" />
         </node>
       </node>
-      <node concept="3uibUv" id="Hg6Enc6cUH" role="3clF45">
+      <node concept="3uibUv" id="Hg6Enc6phe" role="3clF45">
         <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
-        <node concept="3qUE_q" id="Hg6Enc6olk" role="11_B2D">
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-            <node concept="3qTvmN" id="Hg6Encs16z" role="11_B2D" />
-          </node>
+        <node concept="3uibUv" id="Hg6Enc6wvA" role="11_B2D">
+          <ref role="3uigEE" to="tj24:1pPth$lBNWG" resolve="EvaluateRulesStep" />
         </node>
       </node>
-      <node concept="3Tmbuc" id="Hg6EncFur4" role="1B3o_S" />
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-      <property role="1EzhhJ" value="true" />
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-      <property role="TrG5h" value="doSchedule" />
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-        <node concept="3uibUv" id="Hg6EncdmgF" role="1tU5fm">
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+        <node concept="3cpWs8" id="Hg6EncXntS" role="3cqZAp">
+          <node concept="3cpWsn" id="Hg6EncXntT" role="3cpWs9">
+            <property role="TrG5h" value="withTrace" />
+            <node concept="3uibUv" id="Hg6EncXnsI" role="1tU5fm">
+              <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
+              <node concept="1LlUBW" id="Hg6EncXnsT" role="11_B2D">
+                <node concept="3uibUv" id="Hg6EncXnsU" role="1Lm7xW">
+                  <ref role="3uigEE" to="tj24:1pPth$lAwc0" resolve="ApplyTemplatesStep" />
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-                <node concept="37vLTw" id="6kREIVkgMSO" role="10QFUP">
-                  <ref role="3cqZAo" node="6kREIVkgMSJ" resolve="prevStep" />
+                <node concept="3uibUv" id="Hg6EncXnsV" role="1Lm7xW">
+                  <ref role="3uigEE" to="yg8f:qubcdtxBiR" resolve="EvaluationTraceExt" />
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-                  <node concept="16syzq" id="6kREIVkn7gS" role="1tU5fm">
-                    <ref role="16sUi3" node="1pPth$lD_uI" resolve="Prev" />
+            <node concept="2OqwBi" id="Hg6EncXntV" role="33vP2m">
+              <node concept="2OqwBi" id="Hg6End1bLH" role="2Oq$k0">
+                <node concept="37vLTw" id="Hg6EncXntW" role="2Oq$k0">
+                  <ref role="3cqZAo" node="Hg6Enc6phb" resolve="prevStep" />
+                </node>
+                <node concept="liA8E" id="Hg6EncXnuT" role="2OqNvi">
+                  <ref role="37wK5l" to="unkn:~Single.observeOn(io.reactivex.Scheduler):io.reactivex.Single" resolve="observeOn" />
+                  <node concept="2YIFZM" id="Hg6EncXnuU" role="37wK5m">
+                    <ref role="1Pybhc" to="f4yq:~SwingSchedulers" resolve="SwingSchedulers" />
+                    <ref role="37wK5l" to="f4yq:~SwingSchedulers.edt():io.reactivex.Scheduler" resolve="edt" />
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                 </node>
-                <node concept="3clFbS" id="6kREIVkgMSC" role="1bW5cS">
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-                          <ref role="2Oxat5" node="1pPth$lLkEu" resolve="startTime" />
+              </node>
+              <node concept="liA8E" id="Hg6EncXntX" role="2OqNvi">
+                <ref role="37wK5l" to="unkn:~Single.map(io.reactivex.functions.Function):io.reactivex.Single" resolve="map" />
+                <node concept="1bVj0M" id="Hg6EncXntY" role="37wK5m">
+                  <node concept="37vLTG" id="Hg6EncXntZ" role="1bW2Oz">
+                    <property role="TrG5h" value="prev" />
+                    <node concept="3uibUv" id="Hg6EncXnu0" role="1tU5fm">
+                      <ref role="3uigEE" to="tj24:1pPth$lAwc0" resolve="ApplyTemplatesStep" />
+                    </node>
+                  </node>
+                  <node concept="3clFbS" id="Hg6EncXnu1" role="1bW5cS">
+                    <node concept="3clFbH" id="Hg6EncXnu2" role="3cqZAp" />
+                    <node concept="3cpWs8" id="Hg6EncXnu3" role="3cqZAp">
+                      <node concept="3cpWsn" id="Hg6EncXnu4" role="3cpWs9">
+                        <property role="TrG5h" value="trace" />
+                        <node concept="3uibUv" id="Hg6EncXnu5" role="1tU5fm">
+                          <ref role="3uigEE" to="yg8f:qubcdtxBiR" resolve="EvaluationTraceExt" />
+                        </node>
+                        <node concept="10M0yZ" id="Hg6EncXnu6" role="33vP2m">
+                          <ref role="1PxDUh" to="yg8f:qubcdtxBiR" resolve="EvaluationTraceExt" />
+                          <ref role="3cqZAo" to="yg8f:24Vro6cS5rK" resolve="NULL" />
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-                    <node concept="37vLTw" id="6kREIVkmBAA" role="3clFbG">
-                      <ref role="3cqZAo" node="6kREIVkmlHv" resolve="prev" />
+                    <node concept="3cpWs8" id="Hg6EncXnu7" role="3cqZAp">
+                      <node concept="3cpWsn" id="Hg6EncXnu8" role="3cpWs9">
+                        <property role="TrG5h" value="programs" />
+                        <node concept="_YKpA" id="Hg6EncXnu9" role="1tU5fm">
+                          <node concept="3uibUv" id="Hg6EncXnua" role="_ZDj9">
+                            <ref role="3uigEE" to="av0y:~Program" resolve="Program" />
+                          </node>
+                        </node>
+                        <node concept="2OqwBi" id="Hg6EncXnub" role="33vP2m">
+                          <node concept="liA8E" id="6kREIVl1TxS" role="2OqNvi">
+                            <ref role="37wK5l" to="tj24:6kREIVl0HhM" resolve="getPrograms" />
+                          </node>
+                          <node concept="37vLTw" id="Hg6EncXnud" role="2Oq$k0">
+                            <ref role="3cqZAo" node="Hg6EncXntZ" resolve="prev" />
+                          </node>
+                        </node>
+                      </node>
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+                    <node concept="1DcWWT" id="Hg6EncXnue" role="3cqZAp">
+                      <node concept="3clFbS" id="Hg6EncXnuf" role="2LFqv$">
+                        <node concept="3cpWs8" id="Hg6EncXnuj" role="3cqZAp">
+                          <node concept="3cpWsn" id="Hg6EncXnuk" role="3cpWs9">
+                            <property role="TrG5h" value="activationTrace" />
+                            <node concept="3uibUv" id="Hg6EncXnul" role="1tU5fm">
+                              <ref role="3uigEE" node="7nPD14Nbbbe" resolve="TraceComponent" />
+                            </node>
+                            <node concept="2YIFZM" id="Hg6EncXnum" role="33vP2m">
+                              <ref role="1Pybhc" node="7nPD14Nbbbe" resolve="TraceComponent" />
+                              <ref role="37wK5l" node="7nPD14Nboty" resolve="get" />
+                              <node concept="1rXfSq" id="55Q$YFtJFHy" role="37wK5m">
+                                <ref role="37wK5l" to="tj24:55Q$YFtJzDQ" resolve="getMpsProject" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbF" id="Hg6EncXnuq" role="3cqZAp">
+                          <node concept="2OqwBi" id="Hg6EncXnur" role="3clFbG">
+                            <node concept="2OqwBi" id="Hg6EncXnus" role="2Oq$k0">
+                              <node concept="Xjq3P" id="Hg6EncXnut" role="2Oq$k0" />
+                              <node concept="liA8E" id="55Q$YFtJGOX" role="2OqNvi">
+                                <ref role="37wK5l" node="6kREIVl0T6j" resolve="getTraceTabs" />
+                              </node>
+                            </node>
+                            <node concept="TSZUe" id="Hg6EncXnuv" role="2OqNvi">
+                              <node concept="2OqwBi" id="Hg6EncXnuw" role="25WWJ7">
+                                <node concept="37vLTw" id="Hg6EncXnux" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="Hg6EncXnuk" resolve="activationTrace" />
+                                </node>
+                                <node concept="liA8E" id="Hg6EncXnuy" role="2OqNvi">
+                                  <ref role="37wK5l" node="7nPD14Nb$fz" resolve="openTab" />
+                                  <node concept="2OqwBi" id="Hg6EncXnuz" role="37wK5m">
+                                    <node concept="37vLTw" id="Hg6EncXnu$" role="2Oq$k0">
+                                      <ref role="3cqZAo" node="Hg6EncXnuK" resolve="program" />
+                                    </node>
+                                    <node concept="liA8E" id="Hg6EncXnu_" role="2OqNvi">
+                                      <ref role="37wK5l" to="av0y:~Program.name():java.lang.String" resolve="name" />
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbF" id="Hg6EncXnuA" role="3cqZAp">
+                          <node concept="37vLTI" id="Hg6EncXnuB" role="3clFbG">
+                            <node concept="2OqwBi" id="Hg6EncXnuC" role="37vLTx">
+                              <node concept="2OqwBi" id="Hg6EncXnuD" role="2Oq$k0">
+                                <node concept="2OqwBi" id="Hg6EncXnuE" role="2Oq$k0">
+                                  <node concept="Xjq3P" id="Hg6EncXnuF" role="2Oq$k0" />
+                                  <node concept="liA8E" id="55Q$YFtJHYo" role="2OqNvi">
+                                    <ref role="37wK5l" node="6kREIVl0T6j" resolve="getTraceTabs" />
+                                  </node>
+                                </node>
+                                <node concept="1yVyf7" id="Hg6EncXnuH" role="2OqNvi" />
+                              </node>
+                              <node concept="liA8E" id="Hg6EncXnuI" role="2OqNvi">
+                                <ref role="37wK5l" node="YGS68MEx_L" resolve="trace" />
+                              </node>
+                            </node>
+                            <node concept="37vLTw" id="Hg6EncXnuJ" role="37vLTJ">
+                              <ref role="3cqZAo" node="Hg6EncXnu4" resolve="trace" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="3cpWsn" id="Hg6EncXnuK" role="1Duv9x">
+                        <property role="TrG5h" value="program" />
+                        <node concept="3uibUv" id="Hg6EncXnuL" role="1tU5fm">
+                          <ref role="3uigEE" to="av0y:~Program" resolve="Program" />
+                        </node>
+                      </node>
+                      <node concept="37vLTw" id="Hg6EncXnuM" role="1DdaDG">
+                        <ref role="3cqZAo" node="Hg6EncXnu8" resolve="programs" />
+                      </node>
+                    </node>
+                    <node concept="3clFbH" id="Hg6EncXnuN" role="3cqZAp" />
+                    <node concept="3clFbF" id="Hg6EncXnuO" role="3cqZAp">
+                      <node concept="1Ls8ON" id="Hg6EncXnuP" role="3clFbG">
+                        <node concept="37vLTw" id="Hg6EncXnuQ" role="1Lso8e">
+                          <ref role="3cqZAo" node="Hg6EncXntZ" resolve="prev" />
+                        </node>
+                        <node concept="37vLTw" id="Hg6EncXnuR" role="1Lso8e">
+                          <ref role="3cqZAo" node="Hg6EncXnu4" resolve="trace" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3clFbH" id="Hg6EncXnuS" role="3cqZAp" />
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+        <node concept="3clFbH" id="Hg6EncXsVc" role="3cqZAp" />
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+            <ref role="37wK5l" to="tj24:55Q$YFtHM07" resolve="scheduleWithTrace" />
+            <node concept="37vLTw" id="55Q$YFtIv91" role="37wK5m">
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+            <node concept="37vLTw" id="55Q$YFtIvC0" role="37wK5m">
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-        <node concept="3qTvmN" id="Hg6Enc_dcw" role="11_B2D" />
-      </node>
+    <node concept="3Tm1VV" id="55Q$YFtIVEQ" role="1B3o_S" />
+    <node concept="3uibUv" id="55Q$YFtIVLc" role="1zkMxy">
+      <ref role="3uigEE" to="tj24:1pPth$lBNWG" resolve="EvaluateRulesStep" />
     </node>
   </node>
 </model>
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.ui/build.gradle b/typechecking/solutions/jetbrains.mps.typechecking/build.gradle
similarity index 100%
rename from typechecking/solutions/jetbrains.mps.typechecking.ui/build.gradle
rename to typechecking/solutions/jetbrains.mps.typechecking/build.gradle
diff --git a/typechecking/solutions/jetbrains.mps.typechecking.ui/gradle.properties b/typechecking/solutions/jetbrains.mps.typechecking/gradle.properties
similarity index 100%
rename from typechecking/solutions/jetbrains.mps.typechecking.ui/gradle.properties
rename to typechecking/solutions/jetbrains.mps.typechecking/gradle.properties
diff --git a/typechecking/solutions/jetbrains.mps.typechecking/jetbrains.mps.typechecking.msd b/typechecking/solutions/jetbrains.mps.typechecking/jetbrains.mps.typechecking.msd
new file mode 100644
index 00000000..8931417c
--- /dev/null
+++ b/typechecking/solutions/jetbrains.mps.typechecking/jetbrains.mps.typechecking.msd
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<solution name="jetbrains.mps.typechecking" uuid="6998f568-f0e9-473b-b4a8-9efb6499fc8d" moduleVersion="0" pluginKind="PLUGIN_OTHER" compileInMPS="true">
+  <models>
+    <modelRoot contentPath="${module}" type="default">
+      <sourceRoot location="models" />
+    </modelRoot>
+    <modelRoot contentPath="${module}" type="java_classes">
+      <sourceRoot location="lib/reactive-streams-1.0.0.final.jar" />
+      <sourceRoot location="lib/rxjava-2.1.1.jar" />
+      <sourceRoot location="lib/rxjava2-swing-0.2.1.jar" />
+    </modelRoot>
+  </models>
+  <stubModelEntries>
+    <stubModelEntry path="${module}/lib/reactive-streams-1.0.0.final.jar" />
+    <stubModelEntry path="${module}/lib/rxjava-2.1.1.jar" />
+    <stubModelEntry path="${module}/lib/rxjava2-swing-0.2.1.jar" />
+  </stubModelEntries>
+  <sourcePath />
+  <dependencies>
+    <dependency reexport="true">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
+    <dependency reexport="false">274c9cfa-1024-4444-904c-f2f1383a35da(jetbrains.mps.lang.typesystem2.helper)</dependency>
+    <dependency reexport="false">6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)</dependency>
+    <dependency reexport="false">26e8f4ce-2a35-4f44-8065-e5ba154b18e9(jetbrains.mps.lang.typesystem2.runtime)</dependency>
+    <dependency reexport="true">a5478664-6b44-4c62-a9f7-434f8aa57eee(jetbrains.mps.logic.runtime)</dependency>
+    <dependency reexport="false">bbf5c548-7111-4a53-a117-cdefc664cf34(jetbrains.mps.logic.reactor)</dependency>
+    <dependency reexport="false">ff6372a2-2f45-4ec3-952b-02581666015f(jetbrains.mps.lang.typesystem2.template)</dependency>
+    <dependency reexport="false">ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)</dependency>
+    <dependency reexport="false">742f6602-5a2f-4313-aa6e-ae1cd4ffdc61(MPS.Platform)</dependency>
+    <dependency reexport="false">498d89d2-c2e9-11e2-ad49-6cf049e62fe5(MPS.IDEA)</dependency>
+  </dependencies>
+  <languageVersions>
+    <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="5" />
+    <language slang="l:fd392034-7849-419d-9071-12563d152375:jetbrains.mps.baseLanguage.closures" version="0" />
+    <language slang="l:83888646-71ce-4f1c-9c53-c54016f6ad4f:jetbrains.mps.baseLanguage.collections" version="0" />
+    <language slang="l:f2801650-65d5-424e-bb1b-463a8781b786:jetbrains.mps.baseLanguage.javadoc" version="2" />
+    <language slang="l:760a0a8c-eabb-4521-8bfd-65db761a9ba3:jetbrains.mps.baseLanguage.logging" version="0" />
+    <language slang="l:a247e09e-2435-45ba-b8d2-07e93feba96a:jetbrains.mps.baseLanguage.tuples" version="0" />
+    <language slang="l:63650c59-16c8-498a-99c8-005c7ee9515d:jetbrains.mps.lang.access" version="0" />
+    <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="1" />
+    <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="8" />
+    <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
+  </languageVersions>
+  <dependencyVersions>
+    <module reference="3f233e7f-b8a6-46d2-a57f-795d56775243(Annotations)" version="0" />
+    <module reference="6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)" version="0" />
+    <module reference="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)" version="0" />
+    <module reference="1ed103c3-3aa6-49b7-9c21-6765ee11f224(MPS.Editor)" version="0" />
+    <module reference="498d89d2-c2e9-11e2-ad49-6cf049e62fe5(MPS.IDEA)" version="0" />
+    <module reference="8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)" version="0" />
+    <module reference="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61(MPS.Platform)" version="0" />
+    <module reference="ceab5195-25ea-4f22-9b92-103b95ca8c0c(jetbrains.mps.lang.core)" version="0" />
+    <module reference="d7eb0a2a-bd50-4576-beae-e4a89db35f20(jetbrains.mps.lang.scopes.runtime)" version="0" />
+    <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
+    <module reference="274c9cfa-1024-4444-904c-f2f1383a35da(jetbrains.mps.lang.typesystem2.helper)" version="0" />
+    <module reference="26e8f4ce-2a35-4f44-8065-e5ba154b18e9(jetbrains.mps.lang.typesystem2.runtime)" version="0" />
+    <module reference="ff6372a2-2f45-4ec3-952b-02581666015f(jetbrains.mps.lang.typesystem2.template)" version="0" />
+    <module reference="bbf5c548-7111-4a53-a117-cdefc664cf34(jetbrains.mps.logic.reactor)" version="0" />
+    <module reference="a5478664-6b44-4c62-a9f7-434f8aa57eee(jetbrains.mps.logic.runtime)" version="0" />
+    <module reference="6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.typechecking)" version="0" />
+  </dependencyVersions>
+</solution>
+
diff --git a/typechecking/solutions/jetbrains.mps.typechecking/models/typechecking.mps b/typechecking/solutions/jetbrains.mps.typechecking/models/typechecking.mps
new file mode 100644
index 00000000..b21cd8c7
--- /dev/null
+++ b/typechecking/solutions/jetbrains.mps.typechecking/models/typechecking.mps
@@ -0,0 +1,8619 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<model ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)">
+  <persistence version="9" />
+  <languages>
+    <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="5" />
+    <use id="83888646-71ce-4f1c-9c53-c54016f6ad4f" name="jetbrains.mps.baseLanguage.collections" version="0" />
+    <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
+    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="8" />
+    <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="2" />
+    <use id="760a0a8c-eabb-4521-8bfd-65db761a9ba3" name="jetbrains.mps.baseLanguage.logging" version="0" />
+    <use id="a247e09e-2435-45ba-b8d2-07e93feba96a" name="jetbrains.mps.baseLanguage.tuples" version="0" />
+    <use id="63650c59-16c8-498a-99c8-005c7ee9515d" name="jetbrains.mps.lang.access" version="0" />
+  </languages>
+  <imports>
+    <import index="lui2" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.module(MPS.OpenAPI/)" />
+    <import index="umch" ref="r:4caa22a9-5195-4617-8800-5f9f74cc4480(jetbrains.mps.lang.typesystem2.helper.plugin)" />
+    <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" />
+    <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" />
+    <import index="cmfw" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.event(MPS.OpenAPI/)" />
+    <import index="18ew" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.util(MPS.Core/)" />
+    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.evaluation)" />
+    <import index="cxk7" ref="r:daa544a7-0a5c-49c0-a54c-4c2a5b4868aa(jetbrains.mps.logic.builtin.predicate)" />
+    <import index="zx3l" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.core(jetbrains.mps.logic.reactor/)" />
+    <import index="w7la" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.evaluation(jetbrains.mps.logic.reactor/)" />
+    <import index="yg8f" ref="r:e213377a-f1a7-4ba7-9d08-96bcb97ed8ce(jetbrains.mps.logic.builtin)" />
+    <import index="av0y" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.program(jetbrains.mps.logic.reactor/)" />
+    <import index="fqlx" ref="r:2cc226a9-8a78-4010-b962-823343fd28ff(jetbrains.mps.lang.typesystem2.aspect)" />
+    <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
+    <import index="w1kc" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.smodel(MPS.Core/)" />
+    <import index="psr6" ref="r:ce187d46-c94b-47d6-8d77-26aa6af239e8(jetbrains.mps.lang.typesystem2.type)" />
+    <import index="i348" ref="r:42a15dec-83a9-4fe1-80d6-3bf898c512bd(jetbrains.mps.lang.typesystem2.template)" />
+    <import index="7n8k" ref="r:475a2e92-d7d4-41c3-98e3-172d70b6f018(jetbrains.mps.logic.builtin.program)" />
+    <import index="nz6g" ref="r:ac00f724-30be-446e-805c-2345efc460d7(jetbrains.mps.lang.typesystem2.program)" />
+    <import index="z1c3" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.project(MPS.Core/)" />
+    <import index="5zyv" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util.concurrent(JDK/)" />
+    <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" />
+    <import index="m4y7" ref="6998f568-f0e9-473b-b4a8-9efb6499fc8d/java:io.reactivex.schedulers(jetbrains.mps.typechecking/)" />
+    <import index="unkn" ref="6998f568-f0e9-473b-b4a8-9efb6499fc8d/java:io.reactivex(jetbrains.mps.typechecking/)" />
+    <import index="e0w6" ref="6998f568-f0e9-473b-b4a8-9efb6499fc8d/java:io.reactivex.observers(jetbrains.mps.typechecking/)" />
+    <import index="z1c4" ref="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61/java:jetbrains.mps.project(MPS.Platform/)" />
+    <import index="6exd" ref="r:0f9b1fb3-00f9-4480-b235-1a906a087ab2(jetbrains.mps.logic.treeform)" />
+    <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" />
+    <import index="et5u" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.messages(MPS.Core/)" />
+    <import index="57ty" ref="742f6602-5a2f-4313-aa6e-ae1cd4ffdc61/java:jetbrains.mps.ide.messages(MPS.Platform/)" />
+    <import index="1m72" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.components(MPS.IDEA/)" />
+    <import index="4nm9" ref="498d89d2-c2e9-11e2-ad49-6cf049e62fe5/java:com.intellij.openapi.project(MPS.IDEA/)" />
+    <import index="bj13" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.logical(jetbrains.mps.logic.reactor/)" />
+  </imports>
+  <registry>
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+    </language>
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+        <child id="1145553007750" name="creator" index="2ShVmc" />
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+            <node concept="10Nm6u" id="6$7vuu2wVYs" role="3uHU7w" />
+            <node concept="37vLTw" id="6$7vuu2wVPQ" role="3uHU7B">
+              <ref role="3cqZAo" node="6$7vuu2wPaF" resolve="repository" />
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+        </node>
+        <node concept="3SKdUt" id="3u5wJtaWKY" role="3cqZAp">
+          <node concept="3SKdUq" id="3u5wJtaWL0" role="3SKWNk">
+            <property role="3SKdUp" value="ensure we can read the model" />
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+        <node concept="3clFbF" id="3u5wJtaUx5" role="3cqZAp">
+          <node concept="2OqwBi" id="3u5wJtaVF_" role="3clFbG">
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+              <node concept="37vLTw" id="3u5wJtaUx3" role="2Oq$k0">
+                <ref role="3cqZAo" node="6$7vuu2wPaF" resolve="repository" />
+              </node>
+              <node concept="liA8E" id="3u5wJtaV$y" role="2OqNvi">
+                <ref role="37wK5l" to="lui2:~SRepository.getModelAccess():org.jetbrains.mps.openapi.module.ModelAccess" resolve="getModelAccess" />
+              </node>
+            </node>
+            <node concept="liA8E" id="3u5wJtaVQz" role="2OqNvi">
+              <ref role="37wK5l" to="lui2:~ModelAccess.checkReadAccess():void" resolve="checkReadAccess" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="6$7vuu2wVZh" role="3cqZAp" />
+        <node concept="3cpWs8" id="7kaxm0sECXD" role="3cqZAp">
+          <node concept="3cpWsn" id="7kaxm0sECXE" role="3cpWs9">
+            <property role="TrG5h" value="tc" />
+            <node concept="3uibUv" id="7kaxm0sECXA" role="1tU5fm">
+              <ref role="3uigEE" node="4Z$O9mrQIzY" resolve="Typechecking" />
+            </node>
+            <node concept="2YIFZM" id="7kaxm0sECXF" role="33vP2m">
+              <ref role="37wK5l" node="4Z$O9mrQIG1" resolve="get" />
+              <ref role="1Pybhc" node="4Z$O9mrQIzY" resolve="Typechecking" />
+              <node concept="37vLTw" id="7kaxm0sECXG" role="37wK5m">
+                <ref role="3cqZAo" node="6$7vuu2wPaF" resolve="repository" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="7kaxm0sEDgq" role="3cqZAp">
+          <node concept="3cpWsn" id="7kaxm0sEDgr" role="3cpWs9">
+            <property role="TrG5h" value="typesCache" />
+            <node concept="3uibUv" id="6QH_LDtf$gm" role="1tU5fm">
+              <ref role="3uigEE" node="6QH_LDtfe19" resolve="Typechecking.TypeCache" />
+            </node>
+            <node concept="2OqwBi" id="7kaxm0sEDgs" role="33vP2m">
+              <node concept="37vLTw" id="7kaxm0sEDgt" role="2Oq$k0">
+                <ref role="3cqZAo" node="7kaxm0sECXE" resolve="tc" />
+              </node>
+              <node concept="liA8E" id="7kaxm0sEDgu" role="2OqNvi">
+                <ref role="37wK5l" node="4Z$O9mrQJgp" resolve="cachedTypes" />
+                <node concept="37vLTw" id="7kaxm0sEDgv" role="37wK5m">
+                  <ref role="3cqZAo" node="7kaxm0sEC4f" resolve="unit" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbJ" id="7kaxm0sEDmP" role="3cqZAp">
+          <node concept="3clFbS" id="7kaxm0sEDmR" role="3clFbx">
+            <node concept="3clFbF" id="6QH_LDtbJk2" role="3cqZAp">
+              <node concept="37vLTI" id="6QH_LDtbYJ6" role="3clFbG">
+                <node concept="37vLTw" id="6QH_LDtc1cl" role="37vLTJ">
+                  <ref role="3cqZAo" node="7kaxm0sEDgr" resolve="typesCache" />
+                </node>
+                <node concept="2OqwBi" id="6QH_LDtbK7a" role="37vLTx">
+                  <node concept="37vLTw" id="6QH_LDtbJk0" role="2Oq$k0">
+                    <ref role="3cqZAo" node="7kaxm0sECXE" resolve="tc" />
+                  </node>
+                  <node concept="liA8E" id="6QH_LDtbKr5" role="2OqNvi">
+                    <ref role="37wK5l" node="6QH_LDtbsGz" resolve="updateCachedTypes" />
+                    <node concept="37vLTw" id="6QH_LDtbKtg" role="37wK5m">
+                      <ref role="3cqZAo" node="7kaxm0sEC4f" resolve="unit" />
+                    </node>
+                    <node concept="1bVj0M" id="6QH_LDtbKA7" role="37wK5m">
+                      <node concept="3clFbS" id="6QH_LDtbKA9" role="1bW5cS">
+                        <node concept="3clFbH" id="6QH_LDtbKCF" role="3cqZAp" />
+                        <node concept="3cpWs8" id="6QH_LDtbL9Q" role="3cqZAp">
+                          <node concept="3cpWsn" id="6QH_LDtbL9R" role="3cpWs9">
+                            <property role="TrG5h" value="typesModel" />
+                            <node concept="H_c77" id="6QH_LDtbL9N" role="1tU5fm" />
+                            <node concept="2OqwBi" id="6QH_LDtbL9S" role="33vP2m">
+                              <node concept="37vLTw" id="6QH_LDtbL9T" role="2Oq$k0">
+                                <ref role="3cqZAo" node="6QH_LDtbKDF" resolve="typesCache" />
+                              </node>
+                              <node concept="liA8E" id="6QH_LDtbL9U" role="2OqNvi">
+                                <ref role="37wK5l" node="6QH_LDtcxgx" resolve="typesModel" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3cpWs8" id="6QH_LDtbV4V" role="3cqZAp">
+                          <node concept="3cpWsn" id="6QH_LDtbV4W" role="3cpWs9">
+                            <property role="TrG5h" value="namehint" />
+                            <node concept="17QB3L" id="6QH_LDtbV4X" role="1tU5fm" />
+                            <node concept="3cpWs3" id="6QH_LDtbV4Y" role="33vP2m">
+                              <node concept="Xl_RD" id="6QH_LDtbV4Z" role="3uHU7B">
+                                <property role="Xl_RC" value="type_" />
+                              </node>
+                              <node concept="2YIFZM" id="6QH_LDtbV50" role="3uHU7w">
+                                <ref role="37wK5l" to="18ew:~NameUtil.shortNameFromLongName(java.lang.String):java.lang.String" resolve="shortNameFromLongName" />
+                                <ref role="1Pybhc" to="18ew:~NameUtil" resolve="NameUtil" />
+                                <node concept="2OqwBi" id="6QH_LDtbV51" role="37wK5m">
+                                  <node concept="2OqwBi" id="6QH_LDtbV52" role="2Oq$k0">
+                                    <node concept="2JrnkZ" id="6QH_LDtbV53" role="2Oq$k0">
+                                      <node concept="37vLTw" id="6QH_LDtbV54" role="2JrQYb">
+                                        <ref role="3cqZAo" node="7kaxm0sEC4f" resolve="unit" />
+                                      </node>
+                                    </node>
+                                    <node concept="liA8E" id="6QH_LDtbV55" role="2OqNvi">
+                                      <ref role="37wK5l" to="mhbf:~SModel.getModelId():org.jetbrains.mps.openapi.model.SModelId" resolve="getModelId" />
+                                    </node>
+                                  </node>
+                                  <node concept="liA8E" id="6QH_LDtbV56" role="2OqNvi">
+                                    <ref role="37wK5l" to="mhbf:~SModelId.getModelName():java.lang.String" resolve="getModelName" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbH" id="6QH_LDtdqsb" role="3cqZAp" />
+                        <node concept="3cpWs8" id="6QH_LDtbV57" role="3cqZAp">
+                          <node concept="3cpWsn" id="6QH_LDtbV58" role="3cpWs9">
+                            <property role="TrG5h" value="tplApp" />
+                            <node concept="3uibUv" id="6QH_LDtbV59" role="1tU5fm">
+                              <ref role="3uigEE" node="3GlpCDSxTG7" resolve="TypecheckingTemplates" />
+                            </node>
+                            <node concept="2ShNRf" id="6QH_LDtbV5a" role="33vP2m">
+                              <node concept="1pGfFk" id="6QH_LDtbV5b" role="2ShVmc">
+                                <ref role="37wK5l" node="3GlpCDSychS" resolve="TypecheckingTemplates" />
+                                <node concept="37vLTw" id="6QH_LDtbV5c" role="37wK5m">
+                                  <ref role="3cqZAo" node="6$7vuu2wPaF" resolve="repository" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3cpWs8" id="6QH_LDtbV5d" role="3cqZAp">
+                          <node concept="3cpWsn" id="6QH_LDtbV5e" role="3cpWs9">
+                            <property role="TrG5h" value="res" />
+                            <node concept="3uibUv" id="6QH_LDtbV5f" role="1tU5fm">
+                              <ref role="3uigEE" to="hano:7Oc59RSEjdb" resolve="Result" />
+                            </node>
+                            <node concept="2OqwBi" id="6QH_LDtbV5g" role="33vP2m">
+                              <node concept="37vLTw" id="6QH_LDtbV5h" role="2Oq$k0">
+                                <ref role="3cqZAo" node="6QH_LDtbV58" resolve="tplApp" />
+                              </node>
+                              <node concept="liA8E" id="6QH_LDtbV5i" role="2OqNvi">
+                                <ref role="37wK5l" node="3GlpCDSxTKz" resolve="applyTemplates" />
+                                <node concept="2OqwBi" id="6QH_LDtbV5j" role="37wK5m">
+                                  <node concept="37vLTw" id="6QH_LDtbV5k" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="7kaxm0sEBL9" resolve="node" />
+                                  </node>
+                                  <node concept="2Rxl7S" id="6QH_LDtbV5l" role="2OqNvi" />
+                                </node>
+                                <node concept="37vLTw" id="6QH_LDtbV5m" role="37wK5m">
+                                  <ref role="3cqZAo" node="6QH_LDtbV4W" resolve="namehint" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbJ" id="6QH_LDtbV5n" role="3cqZAp">
+                          <node concept="3clFbS" id="6QH_LDtbV5o" role="3clFbx">
+                            <node concept="3SKdUt" id="6QH_LDtbV5p" role="3cqZAp">
+                              <node concept="3SKdUq" id="6QH_LDtbV5q" role="3SKWNk">
+                                <property role="3SKdUp" value="FIXME: report errors" />
+                              </node>
+                            </node>
+                            <node concept="3cpWs6" id="6QH_LDtbV5r" role="3cqZAp" />
+                          </node>
+                          <node concept="3fqX7Q" id="6QH_LDtbV5v" role="3clFbw">
+                            <node concept="2OqwBi" id="6QH_LDtbV5w" role="3fr31v">
+                              <node concept="37vLTw" id="6QH_LDtbV5x" role="2Oq$k0">
+                                <ref role="3cqZAo" node="6QH_LDtbV5e" resolve="res" />
+                              </node>
+                              <node concept="liA8E" id="6QH_LDtbV5y" role="2OqNvi">
+                                <ref role="37wK5l" to="hano:7Oc59RS_hsj" resolve="isSuccessful" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbH" id="6QH_LDtbV5z" role="3cqZAp" />
+                        <node concept="3cpWs8" id="6QH_LDtbV5P" role="3cqZAp">
+                          <node concept="3cpWsn" id="6QH_LDtbV5Q" role="3cpWs9">
+                            <property role="TrG5h" value="evaluator" />
+                            <node concept="3uibUv" id="6QH_LDtbV5R" role="1tU5fm">
+                              <ref role="3uigEE" to="hano:41ox5Vnk76a" resolve="ProgramEvaluator" />
+                            </node>
+                            <node concept="2ShNRf" id="6QH_LDtbV5S" role="33vP2m">
+                              <node concept="1pGfFk" id="6QH_LDtbV5T" role="2ShVmc">
+                                <ref role="37wK5l" to="hano:HV6urVFjOl" resolve="ProgramEvaluator" />
+                                <node concept="2ShNRf" id="6QH_LDtbV5U" role="37wK5m">
+                                  <node concept="1pGfFk" id="6QH_LDtbV5V" role="2ShVmc">
+                                    <ref role="37wK5l" to="cxk7:3F6vMxqo1c$" resolve="DefaultSessionSolver" />
+                                    <node concept="2OqwBi" id="6QH_LDtbV5W" role="37wK5m">
+                                      <node concept="37vLTw" id="6QH_LDtbV5X" role="2Oq$k0">
+                                        <ref role="3cqZAo" node="6QH_LDtbV58" resolve="tplApp" />
+                                      </node>
+                                      <node concept="liA8E" id="6QH_LDtbV5Y" role="2OqNvi">
+                                        <ref role="37wK5l" node="3GlpCDSyRnn" resolve="getExpressionSolver" />
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3SKdUt" id="6$7vuu2v7qB" role="3cqZAp">
+                          <node concept="3SKdUq" id="6$7vuu2v7qD" role="3SKWNk">
+                            <property role="3SKdUp" value="FIXME: move the initialization to the plugin" />
+                          </node>
+                        </node>
+                        <node concept="3clFbF" id="3F6vMxqjuT0" role="3cqZAp">
+                          <node concept="2OqwBi" id="3F6vMxqjuT1" role="3clFbG">
+                            <node concept="10M0yZ" id="5cDlfXt5cU2" role="2Oq$k0">
+                              <ref role="3cqZAo" to="zx3l:~EvaluationSessionImpl.Companion" resolve="Companion" />
+                              <ref role="1PxDUh" to="zx3l:~EvaluationSessionImpl" resolve="EvaluationSessionImpl" />
+                            </node>
+                            <node concept="liA8E" id="3F6vMxqjuT3" role="2OqNvi">
+                              <ref role="37wK5l" to="zx3l:~EvaluationSessionImpl$Companion.init():void" resolve="init" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="2GUZhq" id="6$7vuu2uZb9" role="3cqZAp">
+                          <node concept="3clFbS" id="6$7vuu2uZbb" role="2GV8ay">
+                            <node concept="3clFbH" id="1CcQBrQszmS" role="3cqZAp" />
+                            <node concept="1DcWWT" id="1CcQBrQssEZ" role="3cqZAp">
+                              <node concept="3clFbS" id="1CcQBrQssF2" role="2LFqv$">
+                                <node concept="3cpWs8" id="6QH_LDtbV5I" role="3cqZAp">
+                                  <node concept="3cpWsn" id="6QH_LDtbV5J" role="3cpWs9">
+                                    <property role="TrG5h" value="config" />
+                                    <node concept="3uibUv" id="6QH_LDtbV5K" role="1tU5fm">
+                                      <ref role="3uigEE" to="w7la:~EvaluationSession$Config" resolve="EvaluationSession.Config" />
+                                    </node>
+                                    <node concept="2YIFZM" id="6QH_LDtbV5L" role="33vP2m">
+                                      <ref role="1Pybhc" to="w7la:~EvaluationSession" resolve="EvaluationSession" />
+                                      <ref role="37wK5l" to="w7la:~EvaluationSession.newSession(jetbrains.mps.logic.reactor.program.Program):jetbrains.mps.logic.reactor.evaluation.EvaluationSession$Config" resolve="newSession" />
+                                      <node concept="37vLTw" id="1CcQBrQsxkQ" role="37wK5m">
+                                        <ref role="3cqZAo" node="1CcQBrQssF3" resolve="program" />
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                                <node concept="3cpWs8" id="6QH_LDtbV6a" role="3cqZAp">
+                                  <node concept="3cpWsn" id="6QH_LDtbV6b" role="3cpWs9">
+                                    <property role="TrG5h" value="res2" />
+                                    <node concept="3uibUv" id="6QH_LDtbV6c" role="1tU5fm">
+                                      <ref role="3uigEE" to="hano:7Oc59RSEjdb" resolve="Result" />
+                                    </node>
+                                    <node concept="2OqwBi" id="6QH_LDtbV6d" role="33vP2m">
+                                      <node concept="37vLTw" id="6QH_LDtbV6e" role="2Oq$k0">
+                                        <ref role="3cqZAo" node="6QH_LDtbV5Q" resolve="evaluator" />
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+                                      <node concept="liA8E" id="6QH_LDtbV6f" role="2OqNvi">
+                                        <ref role="37wK5l" to="hano:HV6urVFrQ9" resolve="eval" />
+                                        <node concept="37vLTw" id="6QH_LDtbV6g" role="37wK5m">
+                                          <ref role="3cqZAo" node="6QH_LDtbV5J" resolve="config" />
+                                        </node>
+                                        <node concept="10M0yZ" id="6QH_LDtbV6h" role="37wK5m">
+                                          <ref role="1PxDUh" to="yg8f:qubcdtxBiR" resolve="EvaluationTraceExt" />
+                                          <ref role="3cqZAo" to="yg8f:24Vro6cS5rK" resolve="NULL" />
+                                        </node>
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                                <node concept="3clFbJ" id="6QH_LDtbV6m" role="3cqZAp">
+                                  <node concept="3clFbS" id="6QH_LDtbV6n" role="3clFbx">
+                                    <node concept="3SKdUt" id="6QH_LDtbV6o" role="3cqZAp">
+                                      <node concept="3SKdUq" id="6QH_LDtbV6p" role="3SKWNk">
+                                        <property role="3SKdUp" value="FIXME: report errors" />
+                                      </node>
+                                    </node>
+                                    <node concept="3cpWs6" id="6QH_LDtbV6q" role="3cqZAp" />
+                                  </node>
+                                  <node concept="3fqX7Q" id="6QH_LDtbV6v" role="3clFbw">
+                                    <node concept="2OqwBi" id="6QH_LDtbV6w" role="3fr31v">
+                                      <node concept="37vLTw" id="6QH_LDtbV6x" role="2Oq$k0">
+                                        <ref role="3cqZAo" node="6QH_LDtbV6b" resolve="res2" />
+                                      </node>
+                                      <node concept="liA8E" id="6QH_LDtbV6y" role="2OqNvi">
+                                        <ref role="37wK5l" to="hano:7Oc59RS_hsj" resolve="isSuccessful" />
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
+                              <node concept="3cpWsn" id="1CcQBrQssF3" role="1Duv9x">
+                                <property role="TrG5h" value="program" />
+                                <node concept="3uibUv" id="1CcQBrQssF7" role="1tU5fm">
+                                  <ref role="3uigEE" to="av0y:~Program" resolve="Program" />
+                                </node>
+                              </node>
+                              <node concept="2OqwBi" id="1CcQBrQssF8" role="1DdaDG">
+                                <node concept="37vLTw" id="1CcQBrQssF9" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="6QH_LDtbV58" resolve="tplApp" />
+                                </node>
+                                <node concept="liA8E" id="1CcQBrQssFa" role="2OqNvi">
+                                  <ref role="37wK5l" node="3GlpCDSyO$P" resolve="getPrograms" />
+                                </node>
+                              </node>
+                            </node>
+                            <node concept="3clFbH" id="6$7vuu2uZba" role="3cqZAp" />
+                          </node>
+                          <node concept="3clFbS" id="6$7vuu2uZbc" role="2GVbov">
+                            <node concept="3clFbF" id="6$7vuu2uR6h" role="3cqZAp">
+                              <node concept="2OqwBi" id="6$7vuu2uR6i" role="3clFbG">
+                                <node concept="10M0yZ" id="5cDlfXt5gwP" role="2Oq$k0">
+                                  <ref role="3cqZAo" to="zx3l:~EvaluationSessionImpl.Companion" resolve="Companion" />
+                                  <ref role="1PxDUh" to="zx3l:~EvaluationSessionImpl" resolve="EvaluationSessionImpl" />
+                                </node>
+                                <node concept="liA8E" id="6$7vuu2uR6k" role="2OqNvi">
+                                  <ref role="37wK5l" to="zx3l:~EvaluationSessionImpl$Companion.deinit():void" resolve="deinit" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbH" id="6QH_LDtbV6z" role="3cqZAp" />
+                        <node concept="3cpWs8" id="1CcQBrQng1x" role="3cqZAp">
+                          <node concept="3cpWsn" id="1CcQBrQng1y" role="3cpWs9">
+                            <property role="TrG5h" value="types" />
+                            <node concept="3uibUv" id="1CcQBrQng1v" role="1tU5fm">
+                              <ref role="3uigEE" node="6HT7BWBSFOV" resolve="TypeCollector" />
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+                            <node concept="2ShNRf" id="1CcQBrQng1z" role="33vP2m">
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+                      <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
+                      <node concept="3qUE_q" id="6kREIVkBAZp" role="11_B2D">
+                        <node concept="3uibUv" id="6kREIVkBAZq" role="3qUE_r">
+                          <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
+                          <node concept="3qTvmN" id="6kREIVkBAZr" role="11_B2D" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="Rh6nW" id="6kREIVkB_Vx" role="1bW2Oz">
+                    <property role="TrG5h" value="it" />
+                    <node concept="2jxLKc" id="6kREIVkB_Vy" role="1tU5fm" />
+                  </node>
+                </node>
+                <node concept="37vLTw" id="6kREIVkCl_O" role="1MDeny">
+                  <ref role="3cqZAo" node="6kREIVkCl_K" resolve="just" />
+                </node>
+              </node>
+            </node>
+            <node concept="liA8E" id="6kREIVkC$n2" role="2OqNvi">
+              <ref role="37wK5l" to="unkn:~Single.toCompletable():io.reactivex.Completable" resolve="toCompletable" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="6kREIVkQe9J" role="jymVt" />
+    <node concept="3clFb_" id="6kREIVkp0T3" role="jymVt">
+      <property role="TrG5h" value="success" />
+      <node concept="37vLTG" id="6kREIVkpzoM" role="3clF46">
+        <property role="TrG5h" value="step" />
+        <node concept="3uibUv" id="6kREIVkpCsf" role="1tU5fm">
+          <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
+          <node concept="16syzq" id="6kREIVkrJw2" role="11_B2D">
+            <ref role="16sUi3" node="6kREIVkq_DP" resolve="S" />
+          </node>
+        </node>
+      </node>
+      <node concept="3uibUv" id="6kREIVkt9Qk" role="3clF45">
+        <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
+        <node concept="3qUE_q" id="6kREIVktgwq" role="11_B2D">
+          <node concept="3uibUv" id="6kREIVktgG3" role="3qUE_r">
+            <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
+            <node concept="3qTvmN" id="6kREIVkthlH" role="11_B2D" />
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm6S6" id="6kREIVkp6J5" role="1B3o_S" />
+      <node concept="3clFbS" id="6kREIVkp0T7" role="3clF47">
+        <node concept="3clFbF" id="6kREIVkDtth" role="3cqZAp">
+          <node concept="2OqwBi" id="6kREIVkpVzb" role="3clFbG">
+            <node concept="37vLTw" id="6kREIVkpPZM" role="2Oq$k0">
+              <ref role="3cqZAo" node="6kREIVkpzoM" resolve="step" />
+            </node>
+            <node concept="liA8E" id="6kREIVkq2ib" role="2OqNvi">
+              <ref role="37wK5l" to="unkn:~Single.doOnSuccess(io.reactivex.functions.Consumer):io.reactivex.Single" resolve="doOnSuccess" />
+              <node concept="1bVj0M" id="6kREIVkq8QF" role="37wK5m">
+                <node concept="3clFbS" id="6kREIVkq8QG" role="1bW5cS">
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+                    <node concept="1rXfSq" id="6kREIVku5V2" role="3clFbG">
+                      <ref role="37wK5l" node="7dgRGU4MD7E" resolve="feedback" />
+                      <node concept="37vLTw" id="6kREIVkKp9Y" role="37wK5m">
+                        <ref role="3cqZAo" node="6kREIVkqewG" resolve="step" />
+                      </node>
+                      <node concept="3clFbT" id="6kREIVkubXN" role="37wK5m">
+                        <property role="3clFbU" value="true" />
+                      </node>
+                      <node concept="10Nm6u" id="6kREIVkzoxR" role="37wK5m" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="37vLTG" id="6kREIVkqewG" role="1bW2Oz">
+                  <property role="TrG5h" value="step" />
+                  <node concept="16syzq" id="6kREIVkqRNQ" role="1tU5fm">
+                    <ref role="16sUi3" node="6kREIVkq_DP" resolve="S" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="16euLQ" id="6kREIVkq_DP" role="16eVyc">
+        <property role="TrG5h" value="S" />
+        <node concept="3uibUv" id="6kREIVkq_DQ" role="3ztrMU">
+          <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
+          <node concept="3qTvmN" id="6kREIVkq_DR" role="11_B2D" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="6kREIVkdEbN" role="jymVt" />
+    <node concept="3clFb_" id="6kREIVkdKgX" role="jymVt">
+      <property role="TrG5h" value="recover" />
+      <node concept="37vLTG" id="6kREIVke7Pf" role="3clF46">
+        <property role="TrG5h" value="single" />
+        <node concept="3uibUv" id="6kREIVkeds5" role="1tU5fm">
+          <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
+          <node concept="16syzq" id="6kREIVkee9Z" role="11_B2D">
+            <ref role="16sUi3" node="6kREIVke1wi" resolve="S" />
+          </node>
+        </node>
+      </node>
+      <node concept="3uibUv" id="6kREIVkele0" role="3clF45">
+        <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
+        <node concept="16syzq" id="6kREIVkerhC" role="11_B2D">
+          <ref role="16sUi3" node="6kREIVke1wi" resolve="S" />
+        </node>
+      </node>
+      <node concept="3Tm6S6" id="6kREIVkdQ4s" role="1B3o_S" />
+      <node concept="3clFbS" id="6kREIVkdKh1" role="3clF47">
+        <node concept="3SKdUt" id="6kREIVkfsN2" role="3cqZAp">
+          <node concept="3SKdUq" id="6kREIVkfsN4" role="3SKWNk">
+            <property role="3SKdUp" value="unpack the existential '? extends capture-of ? extends Step&lt;?&gt;'" />
+          </node>
+        </node>
+        <node concept="3SKdUt" id="6kREIVkgGOh" role="3cqZAp">
+          <node concept="3SKdUq" id="6kREIVkgGOj" role="3SKWNk">
+            <property role="3SKdUp" value="thank you, java!" />
+          </node>
+        </node>
+        <node concept="3clFbF" id="6kREIVkeeK1" role="3cqZAp">
+          <node concept="2OqwBi" id="6kREIVkefh4" role="3clFbG">
+            <node concept="37vLTw" id="6kREIVkeeK0" role="2Oq$k0">
+              <ref role="3cqZAo" node="6kREIVke7Pf" resolve="single" />
+            </node>
+            <node concept="liA8E" id="6kREIVkeglV" role="2OqNvi">
+              <ref role="37wK5l" to="unkn:~Single.onErrorReturn(io.reactivex.functions.Function):io.reactivex.Single" resolve="onErrorReturn" />
+              <node concept="1bVj0M" id="6kREIVkftIa" role="37wK5m">
+                <node concept="3clFbS" id="6kREIVkftIc" role="1bW5cS">
+                  <node concept="3clFbJ" id="6kREIVkerka" role="3cqZAp">
+                    <node concept="3clFbS" id="6kREIVkerkb" role="3clFbx">
+                      <node concept="3cpWs8" id="6kREIVkerkc" role="3cqZAp">
+                        <node concept="3cpWsn" id="6kREIVkerkd" role="3cpWs9">
+                          <property role="TrG5h" value="resume" />
+                          <node concept="3uibUv" id="6kREIVkerke" role="1tU5fm">
+                            <ref role="3uigEE" node="6kREIVk53FE" resolve="ResumeNextStepException" />
+                          </node>
+                          <node concept="1eOMI4" id="6kREIVkerkf" role="33vP2m">
+                            <node concept="10QFUN" id="6kREIVkerkg" role="1eOMHV">
+                              <node concept="3uibUv" id="6kREIVkerkh" role="10QFUM">
+                                <ref role="3uigEE" node="6kREIVk53FE" resolve="ResumeNextStepException" />
+                              </node>
+                              <node concept="37vLTw" id="6kREIVkerki" role="10QFUP">
+                                <ref role="3cqZAo" node="6kREIVkftXC" resolve="t" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="3cpWs8" id="6kREIVkKnAM" role="3cqZAp">
+                        <node concept="3cpWsn" id="6kREIVkKnAN" role="3cpWs9">
+                          <property role="TrG5h" value="step" />
+                          <node concept="16syzq" id="6kREIVkKnAK" role="1tU5fm">
+                            <ref role="16sUi3" node="6kREIVke1wi" resolve="S" />
+                          </node>
+                          <node concept="10QFUN" id="6kREIVkKnAO" role="33vP2m">
+                            <node concept="16syzq" id="6kREIVkKnAP" role="10QFUM">
+                              <ref role="16sUi3" node="6kREIVke1wi" resolve="S" />
+                            </node>
+                            <node concept="2OqwBi" id="6kREIVkKnAQ" role="10QFUP">
+                              <node concept="37vLTw" id="6kREIVkKnAR" role="2Oq$k0">
+                                <ref role="3cqZAo" node="6kREIVkerkd" resolve="resume" />
+                              </node>
+                              <node concept="liA8E" id="6kREIVkKnAS" role="2OqNvi">
+                                <ref role="37wK5l" node="6kREIVk5cLq" resolve="failedStep" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="3clFbF" id="6kREIVkjYWz" role="3cqZAp">
+                        <node concept="1rXfSq" id="6kREIVkjYWx" role="3clFbG">
+                          <ref role="37wK5l" node="7dgRGU4MD7E" resolve="feedback" />
+                          <node concept="37vLTw" id="6kREIVkKo$_" role="37wK5m">
+                            <ref role="3cqZAo" node="6kREIVkKnAN" resolve="step" />
+                          </node>
+                          <node concept="3clFbT" id="6kREIVkjZEr" role="37wK5m">
+                            <property role="3clFbU" value="false" />
+                          </node>
+                          <node concept="2OqwBi" id="6kREIVkk1ym" role="37wK5m">
+                            <node concept="37vLTw" id="6kREIVkk1ip" role="2Oq$k0">
+                              <ref role="3cqZAo" node="6kREIVkftXC" resolve="t" />
+                            </node>
+                            <node concept="liA8E" id="6kREIVkk1YN" role="2OqNvi">
+                              <ref role="37wK5l" to="wyt6:~Throwable.getMessage():java.lang.String" resolve="getMessage" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="3cpWs6" id="6kREIVkerkj" role="3cqZAp">
+                        <node concept="37vLTw" id="6kREIVkKnAT" role="3cqZAk">
+                          <ref role="3cqZAo" node="6kREIVkKnAN" resolve="step" />
+                        </node>
+                      </node>
+                      <node concept="3clFbH" id="6kREIVkhNgc" role="3cqZAp" />
+                    </node>
+                    <node concept="2ZW3vV" id="6kREIVkerkn" role="3clFbw">
+                      <node concept="3uibUv" id="6kREIVkerko" role="2ZW6by">
+                        <ref role="3uigEE" node="6kREIVk53FE" resolve="ResumeNextStepException" />
+                      </node>
+                      <node concept="37vLTw" id="6kREIVkg3wJ" role="2ZW6bz">
+                        <ref role="3cqZAo" node="6kREIVkftXC" resolve="t" />
+                      </node>
+                    </node>
+                    <node concept="3eNFk2" id="6kREIVkhGZe" role="3eNLev">
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+                        <node concept="3uibUv" id="6kREIVkhJHE" role="2ZW6by">
+                          <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
+                        </node>
+                        <node concept="37vLTw" id="6kREIVkhIzb" role="2ZW6bz">
+                          <ref role="3cqZAo" node="6kREIVkftXC" resolve="t" />
+                        </node>
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+                      <node concept="3clFbS" id="6kREIVkhGZg" role="3eOfB_">
+                        <node concept="YS8fn" id="6kREIVkhMBa" role="3cqZAp">
+                          <node concept="1eOMI4" id="6kREIVkhMGP" role="YScLw">
+                            <node concept="10QFUN" id="6kREIVkhMGQ" role="1eOMHV">
+                              <node concept="3uibUv" id="6kREIVkhMGR" role="10QFUM">
+                                <ref role="3uigEE" to="wyt6:~RuntimeException" resolve="RuntimeException" />
+                              </node>
+                              <node concept="37vLTw" id="6kREIVkhMGS" role="10QFUP">
+                                <ref role="3cqZAo" node="6kREIVkftXC" resolve="t" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbH" id="6kREIVl2x1f" role="3cqZAp" />
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+                    </node>
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+                        <node concept="YS8fn" id="6kREIVl2xqg" role="3cqZAp">
+                          <node concept="2ShNRf" id="6kREIVl2xGY" role="YScLw">
+                            <node concept="1pGfFk" id="6kREIVl2zK2" role="2ShVmc">
+                              <ref role="37wK5l" to="wyt6:~RuntimeException.&lt;init&gt;(java.lang.String,java.lang.Throwable)" resolve="RuntimeException" />
+                              <node concept="Xl_RD" id="6kREIVl2$Q8" role="37wK5m">
+                                <property role="Xl_RC" value="unexpected exception" />
+                              </node>
+                              <node concept="37vLTw" id="6kREIVl2$2K" role="37wK5m">
+                                <ref role="3cqZAo" node="6kREIVkftXC" resolve="t" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="37vLTG" id="6kREIVkftXC" role="1bW2Oz">
+                  <property role="TrG5h" value="t" />
+                  <node concept="3uibUv" id="6kREIVkfuxW" role="1tU5fm">
+                    <ref role="3uigEE" to="wyt6:~Throwable" resolve="Throwable" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="16euLQ" id="6kREIVke1wi" role="16eVyc">
+        <property role="TrG5h" value="S" />
+        <node concept="3uibUv" id="6kREIVke7lV" role="3ztrMU">
+          <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
+          <node concept="3qTvmN" id="6kREIVke7Pc" role="11_B2D" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="1pPth$lMqse" role="jymVt" />
+    <node concept="3clFb_" id="1N_0WA5JUy$" role="jymVt">
+      <property role="TrG5h" value="updateFeedback" />
+      <node concept="37vLTG" id="6kREIVkKcW1" role="3clF46">
+        <property role="TrG5h" value="step" />
+        <node concept="3uibUv" id="6kREIVkKih7" role="1tU5fm">
+          <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
+          <node concept="3qTvmN" id="6kREIVkKj5W" role="11_B2D" />
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+      </node>
+      <node concept="37vLTG" id="1N_0WA5JWLd" role="3clF46">
+        <property role="TrG5h" value="success" />
+        <node concept="10P_77" id="1N_0WA5JX1k" role="1tU5fm" />
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+      <node concept="37vLTG" id="1N_0WA5Kg9W" role="3clF46">
+        <property role="TrG5h" value="errorMsg" />
+        <node concept="17QB3L" id="1N_0WA5Kgka" role="1tU5fm" />
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+      <node concept="3uibUv" id="1N_0WA5K2wG" role="3clF45">
+        <ref role="3uigEE" to="wyt6:~StringBuilder" resolve="StringBuilder" />
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+      <node concept="3Tm6S6" id="1N_0WA5K01o" role="1B3o_S" />
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+                      <ref role="37wK5l" node="6kREIVkG1Hg" resolve="getStartTime" />
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+                  <node concept="2YIFZM" id="1N_0WA5JZX7" role="3uHU7B">
+                    <ref role="37wK5l" to="wyt6:~System.nanoTime():long" resolve="nanoTime" />
+                    <ref role="1Pybhc" to="wyt6:~System" resolve="System" />
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+                </node>
+              </node>
+              <node concept="1adDum" id="1N_0WA5JZX8" role="3uHU7w">
+                <property role="1adDun" value="1000000L" />
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+              <ref role="3cqZAo" node="1pPth$lAEQs" resolve="feedback" />
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+            <node concept="liA8E" id="1N_0WA5JWB9" role="2OqNvi">
+              <ref role="37wK5l" to="wyt6:~StringBuilder.append(java.lang.String):java.lang.StringBuilder" resolve="append" />
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+                <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
+                <ref role="37wK5l" to="wyt6:~String.format(java.lang.String,java.lang.Object...):java.lang.String" resolve="format" />
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+                    <property role="Xl_RC" value=" -- %s (took %2$Ts.%2$TLs)\n" />
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+                      <node concept="37vLTw" id="1N_0WA5K1Lo" role="3K4Cdx">
+                        <ref role="3cqZAo" node="1N_0WA5JWLd" resolve="success" />
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+                      <node concept="Xl_RD" id="1N_0WA5JWBh" role="3K4E3e">
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+    <node concept="312cEg" id="1CcQBrQoJoP" role="jymVt">
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+      <node concept="3Tm6S6" id="6kREIVl17U5" role="1B3o_S" />
+      <node concept="3uibUv" id="1CcQBrQoM5e" role="1tU5fm">
+        <ref role="3uigEE" to="w7la:~StoreView" resolve="StoreView" />
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+    <node concept="3Tm1VV" id="3F6vMxq$V$W" role="1B3o_S" />
+    <node concept="3uibUv" id="1pPth$lBP1p" role="1zkMxy">
+      <ref role="3uigEE" node="1pPth$lAzAx" resolve="Step" />
+      <node concept="3uibUv" id="1N_0WA5GiE0" role="11_B2D">
+        <ref role="3uigEE" node="1pPth$lAwc0" resolve="ApplyTemplatesStep" />
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+    </node>
+    <node concept="312cEg" id="3F6vMxqv_px" role="jymVt">
+      <property role="TrG5h" value="msgtrace" />
+      <node concept="3Tm6S6" id="6kREIVkHFzh" role="1B3o_S" />
+      <node concept="3uibUv" id="6IQb_Rx4498" role="1tU5fm">
+        <ref role="3uigEE" node="6IQb_Rx3pZ8" resolve="MessageViewInfoTracer" />
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+    <node concept="312cEg" id="1N_0WA5HPC_" role="jymVt">
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+      <node concept="3Tm6S6" id="1N_0WA5HPCA" role="1B3o_S" />
+      <node concept="10P_77" id="1N_0WA5HPCC" role="1tU5fm" />
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+    <node concept="312cEg" id="6kREIVkLUMS" role="jymVt">
+      <property role="TrG5h" value="mpsProject" />
+      <node concept="3Tm6S6" id="6kREIVkLUMT" role="1B3o_S" />
+      <node concept="3uibUv" id="6kREIVkLUMV" role="1tU5fm">
+        <ref role="3uigEE" to="z1c4:~MPSProject" resolve="MPSProject" />
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+  <node concept="312cEu" id="1pPth$lAwc0">
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+    <property role="TrG5h" value="ApplyTemplatesStep" />
+    <property role="3GE5qa" value="typechecking.step" />
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+    <node concept="2tJIrI" id="6kREIVkR068" role="jymVt" />
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+              <node concept="2OwXpG" id="1pPth$lD$FA" role="2OqNvi">
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+            <node concept="37vLTw" id="1pPth$lD$FF" role="37vLTx">
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+            <node concept="37vLTw" id="6kREIVkLEGB" role="37vLTx">
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+        <node concept="3Tqbb2" id="4n$QnzZUD2S" role="1tU5fm" />
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+      <node concept="37vLTG" id="6kREIVkLEc$" role="3clF46">
+        <property role="TrG5h" value="mpsProject" />
+        <node concept="3uibUv" id="6kREIVkLEBK" role="1tU5fm">
+          <ref role="3uigEE" to="z1c4:~MPSProject" resolve="MPSProject" />
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+    <node concept="2tJIrI" id="6kREIVkQZkh" role="jymVt" />
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+      <node concept="17QB3L" id="1pPth$lMB$w" role="3clF45" />
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+          <node concept="Xl_RD" id="1pPth$lMDbQ" role="3clFbG">
+            <property role="Xl_RC" value="applying templates" />
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+    <node concept="2tJIrI" id="Hg6Enc3xms" role="jymVt" />
+    <node concept="3clFb_" id="Hg6Enc3ZJW" role="jymVt">
+      <property role="TrG5h" value="schedule" />
+      <property role="1EzhhJ" value="false" />
+      <node concept="37vLTG" id="Hg6Enc3ZJX" role="3clF46">
+        <property role="TrG5h" value="prevStep" />
+        <node concept="3uibUv" id="Hg6Enc3ZJY" role="1tU5fm">
+          <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
+          <node concept="3uibUv" id="Hg6Enc_ppe" role="11_B2D">
+            <ref role="3uigEE" node="Hg6Enc_35l" resolve="InitStep" />
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="6kREIVkNb76" role="3clF46">
+        <property role="TrG5h" value="subscribeScheduler" />
+        <node concept="3uibUv" id="6kREIVkNb77" role="1tU5fm">
+          <ref role="3uigEE" to="unkn:~Scheduler" resolve="Scheduler" />
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+      </node>
+      <node concept="3uibUv" id="Hg6Enc5CAw" role="3clF45">
+        <ref role="3uigEE" to="unkn:~Single" resolve="Single" />
+        <node concept="3qUE_q" id="Hg6EncuiAn" role="11_B2D">
+          <node concept="3uibUv" id="Hg6EncuiAo" role="3qUE_r">
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+            <node concept="3qTvmN" id="Hg6EncuiAp" role="11_B2D" />
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+      <node concept="3Tmbuc" id="Hg6EncFBbo" role="1B3o_S" />
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+            <node concept="37vLTw" id="Hg6Enc49zQ" role="2Oq$k0">
+              <ref role="3cqZAo" node="Hg6Enc3ZJX" resolve="prevStep" />
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+            <node concept="liA8E" id="Hg6Enc4hNz" role="2OqNvi">
+              <ref role="37wK5l" to="unkn:~Single.map(io.reactivex.functions.Function):io.reactivex.Single" resolve="map" />
+              <node concept="1bVj0M" id="Hg6Enc4Jpw" role="37wK5m">
+                <node concept="37vLTG" id="Hg6Enc4Ka2" role="1bW2Oz">
+                  <property role="TrG5h" value="prevStep" />
+                  <node concept="3uibUv" id="Hg6EncCJdD" role="1tU5fm">
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+                  <node concept="3cpWs8" id="Hg6Enc4WaR" role="3cqZAp">
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+                      <node concept="2YIFZM" id="Hg6Enc4WaT" role="33vP2m">
+                        <ref role="37wK5l" to="hano:7Oc59RSEjeq" resolve="OK" />
+                        <ref role="1Pybhc" to="hano:7Oc59RSEjdb" resolve="Result" />
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+                      <node concept="3uibUv" id="Hg6Enc4WaU" role="1tU5fm">
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+                        <node concept="3cpWs8" id="Hg6Enc4Wb0" role="3cqZAp">
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+                            <property role="TrG5h" value="node" />
+                            <node concept="3Tqbb2" id="Hg6Enc4Wb2" role="1tU5fm" />
+                            <node concept="37vLTw" id="Hg6Enc4Wb3" role="33vP2m">
+                              <ref role="3cqZAo" node="1pPth$lD$Ft" resolve="root" />
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+                        <node concept="3cpWs8" id="Hg6Enc4Wb4" role="3cqZAp">
+                          <node concept="3cpWsn" id="Hg6Enc4Wb5" role="3cpWs9">
+                            <property role="TrG5h" value="nameHint" />
+                            <node concept="17QB3L" id="Hg6Enc4Wb6" role="1tU5fm" />
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+                              <node concept="1PxgMI" id="Hg6Enc4Wb8" role="2Oq$k0">
+                                <property role="1BlNFB" value="true" />
+                                <node concept="37vLTw" id="Hg6Enc4Wb9" role="1m5AlR">
+                                  <ref role="3cqZAo" node="Hg6Enc4Wb1" resolve="node" />
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+                                <node concept="chp4Y" id="Hg6Enc4Wba" role="3oSUPX">
+                                  <ref role="cht4Q" to="tpck:h0TrEE$" resolve="INamedConcept" />
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+                              </node>
+                              <node concept="3TrcHB" id="Hg6Enc4Wbb" role="2OqNvi">
+                                <ref role="3TsBF5" to="tpck:h0TrG11" resolve="name" />
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+                            </node>
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+                        <node concept="3clFbJ" id="Hg6Enc4Wbc" role="3cqZAp">
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+                                <node concept="37vLTw" id="Hg6Enc4Wbg" role="37vLTJ">
+                                  <ref role="3cqZAo" node="Hg6Enc4Wb5" resolve="nameHint" />
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+                                <node concept="2YIFZM" id="Hg6Enc4Wbh" role="37vLTx">
+                                  <ref role="1Pybhc" to="wyt6:~String" resolve="String" />
+                                  <ref role="37wK5l" to="wyt6:~String.valueOf(java.lang.Object):java.lang.String" resolve="valueOf" />
+                                  <node concept="2OqwBi" id="Hg6Enc4Wbi" role="37wK5m">
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+                                      <node concept="37vLTw" id="Hg6Enc4Wbk" role="2JrQYb">
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+                              <ref role="3cqZAo" node="Hg6Enc4Wb5" resolve="nameHint" />
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+                                <ref role="2Oxat5" node="3GlpCDSzA$E" resolve="templatesApplication" />
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+                            </node>
+                            <node concept="2ShNRf" id="Hg6Enc4Wbv" role="37vLTx">
+                              <node concept="1pGfFk" id="Hg6Enc4Wbw" role="2ShVmc">
+                                <ref role="37wK5l" node="3GlpCDSychS" resolve="TypecheckingTemplates" />
+                                <node concept="2OqwBi" id="Hg6Enc4Wbx" role="37wK5m">
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+                        <node concept="3clFbF" id="Hg6Enc4WbA" role="3cqZAp">
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+                                <ref role="3cqZAo" node="3GlpCDSzA$E" resolve="templatesApplication" />
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+                    <node concept="3clFbS" id="7y50OW6XU7T" role="3clF47">
+                      <node concept="3clFbF" id="7y50OW6XU7U" role="3cqZAp">
+                        <node concept="37vLTI" id="7y50OW6XU7V" role="3clFbG">
+                          <node concept="37vLTw" id="7y50OW6XU7W" role="37vLTx">
+                            <ref role="3cqZAo" node="7y50OW6XU7P" resolve="message" />
+                          </node>
+                          <node concept="AH0OO" id="7y50OW6XU7X" role="37vLTJ">
+                            <node concept="3cmrfG" id="7y50OW6XU7Y" role="AHEQo">
+                              <property role="3cmrfH" value="0" />
+                            </node>
+                            <node concept="37vLTw" id="7y50OW6XU7Z" role="AHHXb">
+                              <ref role="3cqZAo" node="7y50OW6XU7y" resolve="errors" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="7y50OW6XU80" role="3cqZAp" />
+        <node concept="3cpWs8" id="6kREIVkUaqX" role="3cqZAp">
+          <node concept="3cpWsn" id="6kREIVkUaqY" role="3cpWs9">
+            <property role="TrG5h" value="runTypechecking" />
+            <property role="3TUv4t" value="true" />
+            <node concept="3uibUv" id="6kREIVkUaqZ" role="1tU5fm">
+              <ref role="3uigEE" node="1pPth$lBNWG" resolve="EvaluateRulesStep" />
+            </node>
+            <node concept="2ShNRf" id="6kREIVkUar0" role="33vP2m">
+              <node concept="1pGfFk" id="6kREIVkUar1" role="2ShVmc">
+                <ref role="37wK5l" node="1pPth$lHpLU" resolve="EvaluateRulesStep" />
+                <node concept="10QFUN" id="6kREIVkUaQz" role="37wK5m">
+                  <node concept="37vLTw" id="6kREIVkUaQ$" role="10QFUP">
+                    <ref role="3cqZAo" node="7y50OW6XU7s" resolve="prj" />
+                  </node>
+                  <node concept="3uibUv" id="6kREIVkUaQ_" role="10QFUM">
+                    <ref role="3uigEE" to="z1c4:~MPSProject" resolve="MPSProject" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="6kREIVkZsFR" role="3cqZAp">
+          <node concept="3cpWsn" id="6kREIVkZsFS" role="3cpWs9">
+            <property role="TrG5h" value="applyTemplatesStep" />
+            <node concept="3uibUv" id="6kREIVkZsFK" role="1tU5fm">
+              <ref role="3uigEE" node="1pPth$lAwc0" resolve="ApplyTemplatesStep" />
+            </node>
+            <node concept="2ShNRf" id="6kREIVkZsFT" role="33vP2m">
+              <node concept="1pGfFk" id="6kREIVkZsFU" role="2ShVmc">
+                <ref role="37wK5l" node="1pPth$lDzTR" resolve="ApplyTemplatesStep" />
+                <node concept="37vLTw" id="6kREIVkZsFV" role="37wK5m">
+                  <ref role="3cqZAo" node="7y50OW6XU7q" resolve="root" />
+                </node>
+                <node concept="10QFUN" id="6kREIVkZsFW" role="37wK5m">
+                  <node concept="37vLTw" id="6kREIVkZsFX" role="10QFUP">
+                    <ref role="3cqZAo" node="7y50OW6XU7s" resolve="prj" />
+                  </node>
+                  <node concept="3uibUv" id="6kREIVkZsFY" role="10QFUM">
+                    <ref role="3uigEE" to="z1c4:~MPSProject" resolve="MPSProject" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="7y50OW6XU81" role="3cqZAp">
+          <node concept="3cpWsn" id="7y50OW6XU82" role="3cpWs9">
+            <property role="TrG5h" value="helper" />
+            <node concept="3uibUv" id="7y50OW6XU83" role="1tU5fm">
+              <ref role="3uigEE" node="1pPth$l_TFV" resolve="TypecheckingHelper" />
+            </node>
+            <node concept="2ShNRf" id="7y50OW6XU84" role="33vP2m">
+              <node concept="1pGfFk" id="7y50OW6XU85" role="2ShVmc">
+                <ref role="37wK5l" node="1pPth$lK1ZL" resolve="TypecheckingHelper" />
+                <node concept="37vLTw" id="7y50OW6XU89" role="37wK5m">
+                  <ref role="3cqZAo" node="7y50OW6XU7C" resolve="callback" />
+                </node>
+                <node concept="37vLTw" id="6kREIVkZsFZ" role="37wK5m">
+                  <ref role="3cqZAo" node="6kREIVkZsFS" resolve="applyTemplatesStep" />
+                </node>
+                <node concept="37vLTw" id="6kREIVkZqU_" role="37wK5m">
+                  <ref role="3cqZAo" node="6kREIVkUaqY" resolve="runTypechecking" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="Hg6Endwa30" role="3cqZAp" />
+        <node concept="3SKdUt" id="Hg6EndAhmX" role="3cqZAp">
+          <node concept="3SKdUq" id="Hg6EndAhmZ" role="3SKWNk">
+            <property role="3SKdUp" value="the magic around &quot;setReadEnabledFlag&quot; is necessary because of the fact " />
+          </node>
+        </node>
+        <node concept="3SKdUt" id="Hg6EndAjnt" role="3cqZAp">
+          <node concept="3SKdUq" id="Hg6EndAjnu" role="3SKWNk">
+            <property role="3SKdUp" value="that tests are launched in WRITE action (see &quot;NodeTestCase&quot; impl)" />
+          </node>
+        </node>
+        <node concept="3SKdUt" id="Hg6EndAj3v" role="3cqZAp">
+          <node concept="3SKdUq" id="Hg6EndAj3x" role="3SKWNk">
+            <property role="3SKdUp" value="thus, in order to trick ModelAccess into believeing read is allowed from the scheduler's thread, " />
+          </node>
+        </node>
+        <node concept="3SKdUt" id="Hg6EndAkH0" role="3cqZAp">
+          <node concept="3SKdUq" id="Hg6EndAkH2" role="3SKWNk">
+            <property role="3SKdUp" value="we set this flag before any read action is requested by type checking" />
+          </node>
+        </node>
+        <node concept="3SKdUt" id="Hg6EndAlND" role="3cqZAp">
+          <node concept="3SKdUq" id="Hg6EndAlNF" role="3SKWNk">
+            <property role="3SKdUp" value="otherwise, the Application's lock would not allow any reads while a write is requested" />
+          </node>
+        </node>
+        <node concept="3cpWs8" id="Hg6Endw4S7" role="3cqZAp">
+          <node concept="3cpWsn" id="Hg6Endw4S8" role="3cpWs9">
+            <property role="TrG5h" value="savedFlag" />
+            <property role="3TUv4t" value="true" />
+            <node concept="10Q1$e" id="Hg6EndyVOk" role="1tU5fm">
+              <node concept="10P_77" id="Hg6Endw4S6" role="10Q1$1" />
+            </node>
+            <node concept="2ShNRf" id="Hg6EndyWLh" role="33vP2m">
+              <node concept="3$_iS1" id="Hg6EndyWDn" role="2ShVmc">
+                <node concept="3$GHV9" id="Hg6EndyWTs" role="3$GQph">
+                  <node concept="3cmrfG" id="Hg6EndyX9B" role="3$I4v7">
+                    <property role="3cmrfH" value="1" />
+                  </node>
+                </node>
+                <node concept="10P_77" id="Hg6EndyWDo" role="3$_nBY" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="SfApY" id="Hg6EndBkkK" role="3cqZAp">
+          <node concept="3clFbS" id="Hg6Endw6R6" role="SfCbr">
+            <node concept="3clFbH" id="Hg6EndB3Pr" role="3cqZAp" />
+            <node concept="3clFbF" id="Hg6EndB5PB" role="3cqZAp">
+              <node concept="2OqwBi" id="Hg6EndBev0" role="3clFbG">
+                <node concept="2OqwBi" id="Hg6EndBgeI" role="2Oq$k0">
+                  <node concept="2OqwBi" id="Hg6EndB7s3" role="2Oq$k0">
+                    <node concept="2OqwBi" id="Hg6EndBZIL" role="2Oq$k0">
+                      <node concept="2OqwBi" id="Hg6EndB63M" role="2Oq$k0">
+                        <node concept="2YIFZM" id="Hg6EndB5PD" role="2Oq$k0">
+                          <ref role="37wK5l" to="unkn:~Completable.complete():io.reactivex.Completable" resolve="complete" />
+                          <ref role="1Pybhc" to="unkn:~Completable" resolve="Completable" />
+                        </node>
+                        <node concept="liA8E" id="Hg6EndB6q6" role="2OqNvi">
+                          <ref role="37wK5l" to="unkn:~Completable.startWith(io.reactivex.CompletableSource):io.reactivex.Completable" resolve="startWith" />
+                          <node concept="2YIFZM" id="Hg6EndB6Lu" role="37wK5m">
+                            <ref role="37wK5l" to="unkn:~Completable.fromRunnable(java.lang.Runnable):io.reactivex.Completable" resolve="fromRunnable" />
+                            <ref role="1Pybhc" to="unkn:~Completable" resolve="Completable" />
+                            <node concept="1bVj0M" id="Hg6EndB75V" role="37wK5m">
+                              <node concept="3clFbS" id="Hg6EndB75W" role="1bW5cS">
+                                <node concept="3clFbH" id="Hg6EndB79W" role="3cqZAp" />
+                                <node concept="3clFbF" id="Hg6EndB7dZ" role="3cqZAp">
+                                  <node concept="37vLTI" id="Hg6EndB7e0" role="3clFbG">
+                                    <node concept="2OqwBi" id="Hg6EndB7e1" role="37vLTx">
+                                      <node concept="2YIFZM" id="Hg6EndB7e2" role="2Oq$k0">
+                                        <ref role="1Pybhc" to="w1kc:~ModelAccess" resolve="ModelAccess" />
+                                        <ref role="37wK5l" to="w1kc:~ModelAccess.instance():jetbrains.mps.smodel.ModelAccess" resolve="instance" />
+                                      </node>
+                                      <node concept="liA8E" id="Hg6EndB7e3" role="2OqNvi">
+                                        <ref role="37wK5l" to="w1kc:~ModelAccess.setReadEnabledFlag(boolean):boolean" resolve="setReadEnabledFlag" />
+                                        <node concept="3clFbT" id="Hg6EndB7e4" role="37wK5m">
+                                          <property role="3clFbU" value="true" />
+                                        </node>
+                                      </node>
+                                    </node>
+                                    <node concept="AH0OO" id="Hg6EndB7e5" role="37vLTJ">
+                                      <node concept="3cmrfG" id="Hg6EndB7e6" role="AHEQo">
+                                        <property role="3cmrfH" value="0" />
+                                      </node>
+                                      <node concept="37vLTw" id="Hg6EndB7e7" role="AHHXb">
+                                        <ref role="3cqZAo" node="Hg6Endw4S8" resolve="savedFlag" />
+                                      </node>
+                                    </node>
+                                  </node>
+                                </node>
+                                <node concept="3clFbH" id="Hg6EndB79Y" role="3cqZAp" />
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="liA8E" id="Hg6EndC0e_" role="2OqNvi">
+                        <ref role="37wK5l" to="unkn:~Completable.subscribeOn(io.reactivex.Scheduler):io.reactivex.Completable" resolve="subscribeOn" />
+                        <node concept="2YIFZM" id="Hg6EndC1AE" role="37wK5m">
+                          <ref role="37wK5l" to="m4y7:~Schedulers.single():io.reactivex.Scheduler" resolve="single" />
+                          <ref role="1Pybhc" to="m4y7:~Schedulers" resolve="Schedulers" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="liA8E" id="Hg6EndB85r" role="2OqNvi">
+                      <ref role="37wK5l" to="unkn:~Completable.andThen(io.reactivex.CompletableSource):io.reactivex.Completable" resolve="andThen" />
+                      <node concept="2OqwBi" id="Hg6EndBe2z" role="37wK5m">
+                        <node concept="37vLTw" id="Hg6EndBe2$" role="2Oq$k0">
+                          <ref role="3cqZAo" node="7y50OW6XU82" resolve="helper" />
+                        </node>
+                        <node concept="liA8E" id="Hg6EndBe2_" role="2OqNvi">
+                          <ref role="37wK5l" node="2mbQB8J5m$l" resolve="scheduleExecute" />
+                          <node concept="2YIFZM" id="Hg6EndDbMD" role="37wK5m">
+                            <ref role="1Pybhc" to="m4y7:~Schedulers" resolve="Schedulers" />
+                            <ref role="37wK5l" to="m4y7:~Schedulers.single():io.reactivex.Scheduler" resolve="single" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="liA8E" id="Hg6EndBhdo" role="2OqNvi">
+                    <ref role="37wK5l" to="unkn:~Completable.doFinally(io.reactivex.functions.Action):io.reactivex.Completable" resolve="doFinally" />
+                    <node concept="1bVj0M" id="Hg6EndBhKR" role="37wK5m">
+                      <node concept="3clFbS" id="Hg6EndBhKS" role="1bW5cS">
+                        <node concept="3clFbH" id="Hg6EndBi4V" role="3cqZAp" />
+                        <node concept="3clFbF" id="Hg6EndBidM" role="3cqZAp">
+                          <node concept="2OqwBi" id="Hg6EndBidN" role="3clFbG">
+                            <node concept="2YIFZM" id="Hg6EndBidO" role="2Oq$k0">
+                              <ref role="1Pybhc" to="w1kc:~ModelAccess" resolve="ModelAccess" />
+                              <ref role="37wK5l" to="w1kc:~ModelAccess.instance():jetbrains.mps.smodel.ModelAccess" resolve="instance" />
+                            </node>
+                            <node concept="liA8E" id="Hg6EndBidP" role="2OqNvi">
+                              <ref role="37wK5l" to="w1kc:~ModelAccess.setReadEnabledFlag(boolean):boolean" resolve="setReadEnabledFlag" />
+                              <node concept="AH0OO" id="Hg6EndBidQ" role="37wK5m">
+                                <node concept="3cmrfG" id="Hg6EndBidR" role="AHEQo">
+                                  <property role="3cmrfH" value="0" />
+                                </node>
+                                <node concept="37vLTw" id="Hg6EndBidS" role="AHHXb">
+                                  <ref role="3cqZAo" node="Hg6Endw4S8" resolve="savedFlag" />
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbH" id="Hg6EndBi7v" role="3cqZAp" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="liA8E" id="Hg6EndBfCU" role="2OqNvi">
+                  <ref role="37wK5l" to="unkn:~Completable.blockingAwait():void" resolve="blockingAwait" />
+                </node>
+              </node>
+            </node>
+            <node concept="3clFbH" id="Hg6Endwf5W" role="3cqZAp" />
+          </node>
+          <node concept="TDmWw" id="Hg6EndAeLa" role="TEbGg">
+            <node concept="3cpWsn" id="Hg6EndAeLb" role="TDEfY">
+              <property role="TrG5h" value="exception" />
+              <node concept="3uibUv" id="Hg6EndAfh$" role="1tU5fm">
+                <ref role="3uigEE" to="wyt6:~Exception" resolve="Exception" />
+              </node>
+            </node>
+            <node concept="3clFbS" id="Hg6EndAeLd" role="TDEfX">
+              <node concept="3SKdUt" id="Hg6EndB0SS" role="3cqZAp">
+                <node concept="3SKdUq" id="Hg6EndB0SU" role="3SKWNk">
+                  <property role="3SKdUp" value="FIXME: should probably report this exception to the caller (change checkTypes' contract)" />
+                </node>
+              </node>
+              <node concept="34ab3g" id="Hg6EndAfF$" role="3cqZAp">
+                <property role="35gtTG" value="warn" />
+                <property role="34fQS0" value="true" />
+                <node concept="Xl_RD" id="Hg6EndAfFA" role="34bqiv">
+                  <property role="Xl_RC" value="Exception while typechecking" />
+                </node>
+                <node concept="37vLTw" id="Hg6EndAfFC" role="34bMjA">
+                  <ref role="3cqZAo" node="Hg6EndAeLb" resolve="exception" />
+                </node>
+                <node concept="37vLTw" id="Hg6EndAgh8" role="RQzLk">
+                  <ref role="3cqZAo" node="7y50OW6XU7s" resolve="prj" />
+                </node>
+              </node>
+              <node concept="3clFbH" id="Hg6EndAfnW" role="3cqZAp" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="Hg6Endvgnu" role="3cqZAp" />
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+          <node concept="2ShNRf" id="7y50OW6Yrqm" role="3clFbG">
+            <node concept="YeOm9" id="7y50OW6Ytrt" role="2ShVmc">
+              <node concept="1Y3b0j" id="7y50OW6Ytrw" role="YeSDq">
+                <property role="2bfB8j" value="true" />
+                <ref role="1Y3XeK" node="7y50OW6XXpr" resolve="LaunchTypechecking.TypecheckingResult" />
+                <ref role="37wK5l" to="wyt6:~Object.&lt;init&gt;()" resolve="Object" />
+                <node concept="3Tm1VV" id="7y50OW6Ytrx" role="1B3o_S" />
+                <node concept="3clFb_" id="7y50OW6Ytry" role="jymVt">
+                  <property role="1EzhhJ" value="false" />
+                  <property role="TrG5h" value="error" />
+                  <node concept="17QB3L" id="7y50OW6Ytrz" role="3clF45" />
+                  <node concept="3Tm1VV" id="7y50OW6Ytr$" role="1B3o_S" />
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+                    <node concept="3clFbF" id="7y50OW6YuTx" role="3cqZAp">
+                      <node concept="AH0OO" id="7y50OW6Yvuc" role="3clFbG">
+                        <node concept="3cmrfG" id="7y50OW6YvUh" role="AHEQo">
+                          <property role="3cmrfH" value="0" />
+                        </node>
+                        <node concept="37vLTw" id="7y50OW6YuTw" role="AHHXb">
+                          <ref role="3cqZAo" node="7y50OW6XU7y" resolve="errors" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+                <node concept="3clFb_" id="7y50OW6YtrC" role="jymVt">
+                  <property role="1EzhhJ" value="false" />
+                  <property role="TrG5h" value="getType" />
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+                    <property role="TrG5h" value="node" />
+                    <node concept="3Tqbb2" id="7y50OW6YtrE" role="1tU5fm" />
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+                  <node concept="3uibUv" id="7y50OW6YtrF" role="3clF45">
+                    <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="TreeForm" />
+                  </node>
+                  <node concept="3Tm1VV" id="7y50OW6YtrG" role="1B3o_S" />
+                  <node concept="3clFbS" id="7y50OW6YtrI" role="3clF47">
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+                        <node concept="37vLTw" id="7y50OW6Yx00" role="2Oq$k0">
+                          <ref role="3cqZAo" node="6kREIVkUaqY" resolve="runTypechecking" />
+                        </node>
+                        <node concept="liA8E" id="7y50OW6YVID" role="2OqNvi">
+                          <ref role="37wK5l" node="7y50OW6WPl4" resolve="getTypeTerm" />
+                          <node concept="37vLTw" id="7y50OW6YWTQ" role="37wK5m">
+                            <ref role="3cqZAo" node="7y50OW6YtrD" resolve="node" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="1N_0WA5Jy0_" role="jymVt" />
+    <node concept="3Tm1VV" id="1N_0WA5JxZP" role="1B3o_S" />
+  </node>
+  <node concept="312cEu" id="6HT7BWBSFOV">
+    <property role="2bfB8j" value="false" />
+    <property role="TrG5h" value="TypeCollector" />
+    <node concept="2tJIrI" id="18cJbc1jtVE" role="jymVt" />
+    <node concept="3clFbW" id="1CcQBrQmOiH" role="jymVt">
+      <node concept="37vLTG" id="1CcQBrQmOle" role="3clF46">
+        <property role="TrG5h" value="storeView" />
+        <node concept="3uibUv" id="1CcQBrQmOl$" role="1tU5fm">
+          <ref role="3uigEE" to="w7la:~StoreView" resolve="StoreView" />
+        </node>
+      </node>
+      <node concept="3cqZAl" id="1CcQBrQmOiJ" role="3clF45" />
+      <node concept="3Tm1VV" id="1CcQBrQmOiK" role="1B3o_S" />
+      <node concept="3clFbS" id="1CcQBrQmOiL" role="3clF47">
+        <node concept="3clFbF" id="1CcQBrQmOm9" role="3cqZAp">
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+          <node concept="2YIFZM" id="5w_kaFFSmjQ" role="3cqZAk">
+            <ref role="37wK5l" to="hano:_04VjSrAA8" resolve="extractReference" />
+            <ref role="1Pybhc" to="hano:4OKkcnfu_xo" resolve="AnchorUtil" />
+            <node concept="37vLTw" id="1CcQBrQmZQ_" role="37wK5m">
+              <ref role="3cqZAo" node="1CcQBrQmZPT" resolve="anchor" />
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="18cJbc1jwop" role="jymVt" />
+    <node concept="3Tm1VV" id="2FXL1yZmwzw" role="1B3o_S" />
+    <node concept="312cEg" id="1CcQBrQmOm5" role="jymVt">
+      <property role="TrG5h" value="storeView" />
+      <node concept="3Tm6S6" id="1CcQBrQmOm6" role="1B3o_S" />
+      <node concept="3uibUv" id="1CcQBrQmOm8" role="1tU5fm">
+        <ref role="3uigEE" to="w7la:~StoreView" resolve="StoreView" />
+      </node>
+    </node>
+    <node concept="312cEg" id="1CcQBrQmTN$" role="jymVt">
+      <property role="TrG5h" value="nodeRef2Node" />
+      <node concept="3Tm6S6" id="1CcQBrQmTNw" role="1B3o_S" />
+      <node concept="3rvAFt" id="1CcQBrQmTNx" role="1tU5fm">
+        <node concept="3uibUv" id="1CcQBrQmTNy" role="3rvQeY">
+          <ref role="3uigEE" to="mhbf:~SNodeReference" resolve="SNodeReference" />
+        </node>
+        <node concept="3Tqbb2" id="1CcQBrQmTNz" role="3rvSg0" />
+      </node>
+      <node concept="2ShNRf" id="1CcQBrQmV5a" role="33vP2m">
+        <node concept="3rGOSV" id="1CcQBrQmV5b" role="2ShVmc">
+          <node concept="3uibUv" id="1CcQBrQmV5c" role="3rHrn6">
+            <ref role="3uigEE" to="mhbf:~SNodeReference" resolve="SNodeReference" />
+          </node>
+          <node concept="3Tqbb2" id="1CcQBrQmV5d" role="3rHtpV" />
+        </node>
+      </node>
+    </node>
+    <node concept="312cEg" id="1CcQBrQn5Nm" role="jymVt">
+      <property role="TrG5h" value="nodeRef2Term" />
+      <node concept="3Tm6S6" id="1CcQBrQn5Nn" role="1B3o_S" />
+      <node concept="3rvAFt" id="1CcQBrQn5No" role="1tU5fm">
+        <node concept="3uibUv" id="1CcQBrQn5Np" role="3rvQeY">
+          <ref role="3uigEE" to="mhbf:~SNodeReference" resolve="SNodeReference" />
+        </node>
+        <node concept="3uibUv" id="1CcQBrQn6mV" role="3rvSg0">
+          <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="TreeForm" />
+        </node>
+      </node>
+      <node concept="2ShNRf" id="1CcQBrQn5Nr" role="33vP2m">
+        <node concept="3rGOSV" id="1CcQBrQn5Ns" role="2ShVmc">
+          <node concept="3uibUv" id="1CcQBrQn5Nt" role="3rHrn6">
+            <ref role="3uigEE" to="mhbf:~SNodeReference" resolve="SNodeReference" />
+          </node>
+          <node concept="3uibUv" id="1CcQBrQn6zO" role="3rHtpV">
+            <ref role="3uigEE" to="6exd:1bm7a6EXvsP" resolve="TreeForm" />
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="312cEg" id="5tpkEj3JCKD" role="jymVt">
+      <property role="TrG5h" value="nodeRef2Error" />
+      <node concept="3Tm6S6" id="5tpkEj3JCKE" role="1B3o_S" />
+      <node concept="3rvAFt" id="5tpkEj3JCKF" role="1tU5fm">
+        <node concept="3uibUv" id="5tpkEj3JCKG" role="3rvQeY">
+          <ref role="3uigEE" to="mhbf:~SNodeReference" resolve="SNodeReference" />
+        </node>
+        <node concept="17QB3L" id="5tpkEj3JDau" role="3rvSg0" />
+      </node>
+      <node concept="2ShNRf" id="5tpkEj3JCKI" role="33vP2m">
+        <node concept="3rGOSV" id="5tpkEj3JCKJ" role="2ShVmc">
+          <node concept="3uibUv" id="5tpkEj3JCKK" role="3rHrn6">
+            <ref role="3uigEE" to="mhbf:~SNodeReference" resolve="SNodeReference" />
+          </node>
+          <node concept="17QB3L" id="5tpkEj3JD5B" role="3rHtpV" />
+        </node>
+      </node>
+    </node>
+  </node>
+</model>
+
diff --git a/typesystem2/languages/jetbrains.mps.lang.smodel.types/generator/template/main@generator.mps b/typesystem2/languages/jetbrains.mps.lang.smodel.types/generator/template/main@generator.mps
index 66899079..87a95933 100644
--- a/typesystem2/languages/jetbrains.mps.lang.smodel.types/generator/template/main@generator.mps
+++ b/typesystem2/languages/jetbrains.mps.lang.smodel.types/generator/template/main@generator.mps
@@ -6,7 +6,8 @@
     <devkit ref="a2eb3a43-fcc2-4200-80dc-c60110c4862d(jetbrains.mps.devkit.templates)" />
   </languages>
   <imports>
-    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.typechecking)" />
+    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.evaluation)" />
+    <import index="tj24" ref="r:0fbbb63a-fd15-46e1-8136-78049f6d6e63(jetbrains.mps.typechecking.typechecking)" />
     <import index="z8tp" ref="r:5bfbd177-208e-4d27-b74c-2ebd2a92eb80(jetbrains.mps.lang.smodel.types.structure)" implicit="true" />
     <import index="tpek" ref="r:00000000-0000-4000-0000-011c895902c0(jetbrains.mps.baseLanguage.behavior)" implicit="true" />
   </imports>
@@ -75,12 +76,12 @@
         <node concept="3clFbS" id="3u5wJtc3VJ" role="1Koe22">
           <node concept="3clFbF" id="3u5wJtc3VK" role="3cqZAp">
             <node concept="2OqwBi" id="3u5wJtc3VL" role="3clFbG">
-              <node concept="2YIFZM" id="3u5wJtc3VM" role="2Oq$k0">
-                <ref role="37wK5l" to="hano:7kaxm0sEy4A" resolve="getInstance" />
-                <ref role="1Pybhc" to="hano:7kaxm0sEy3e" resolve="TypecheckingFacade" />
+              <node concept="2YIFZM" id="55Q$YFtvvQe" role="2Oq$k0">
+                <ref role="37wK5l" to="tj24:7kaxm0sEy4A" resolve="getInstance" />
+                <ref role="1Pybhc" to="tj24:7kaxm0sEy3e" resolve="TypecheckingFacade" />
               </node>
               <node concept="liA8E" id="3u5wJtc3VN" role="2OqNvi">
-                <ref role="37wK5l" to="hano:7kaxm0sEBHs" resolve="typeOf" />
+                <ref role="37wK5l" to="tj24:7kaxm0sEBHs" resolve="typeOf" />
                 <node concept="10Nm6u" id="3u5wJtc3VO" role="37wK5m">
                   <node concept="29HgVG" id="3u5wJtc3VP" role="lGtFl">
                     <node concept="3NFfHV" id="3u5wJtc3VQ" role="3NFExx">
diff --git a/typesystem2/languages/jetbrains.mps.lang.smodel.types/jetbrains.mps.lang.smodel.types.mpl b/typesystem2/languages/jetbrains.mps.lang.smodel.types/jetbrains.mps.lang.smodel.types.mpl
index ffc71119..4bea96ab 100644
--- a/typesystem2/languages/jetbrains.mps.lang.smodel.types/jetbrains.mps.lang.smodel.types.mpl
+++ b/typesystem2/languages/jetbrains.mps.lang.smodel.types/jetbrains.mps.lang.smodel.types.mpl
@@ -17,6 +17,7 @@
       <dependencies>
         <dependency reexport="false">26e8f4ce-2a35-4f44-8065-e5ba154b18e9(jetbrains.mps.lang.typesystem2.runtime)</dependency>
         <dependency reexport="false">2bdcefec-ba49-4b32-ab50-ebc7a41d5090(jetbrains.mps.lang.smodel#1139186730696)</dependency>
+        <dependency reexport="false">6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.typechecking)</dependency>
       </dependencies>
       <languageVersions>
         <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="5" />
@@ -54,6 +55,8 @@
         <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
         <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
         <module reference="26e8f4ce-2a35-4f44-8065-e5ba154b18e9(jetbrains.mps.lang.typesystem2.runtime)" version="0" />
+        <module reference="a5478664-6b44-4c62-a9f7-434f8aa57eee(jetbrains.mps.logic.runtime)" version="0" />
+        <module reference="6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.typechecking)" version="0" />
       </dependencyVersions>
       <mapping-priorities>
         <mapping-priority-rule kind="strictly_together">
diff --git a/typesystem2/languages/jetbrains.mps.lang.typesystem2/generator/template/main@generator.mps b/typesystem2/languages/jetbrains.mps.lang.typesystem2/generator/template/main@generator.mps
index f628fdfe..93980c52 100644
--- a/typesystem2/languages/jetbrains.mps.lang.typesystem2/generator/template/main@generator.mps
+++ b/typesystem2/languages/jetbrains.mps.lang.typesystem2/generator/template/main@generator.mps
@@ -49,7 +49,7 @@
     <import index="yg8f" ref="r:e213377a-f1a7-4ba7-9d08-96bcb97ed8ce(jetbrains.mps.logic.builtin)" />
     <import index="dush" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.persistence(MPS.OpenAPI/)" />
     <import index="tpek" ref="r:00000000-0000-4000-0000-011c895902c0(jetbrains.mps.baseLanguage.behavior)" />
-    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.typechecking)" />
+    <import index="hano" ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.evaluation)" />
     <import index="tpcu" ref="r:00000000-0000-4000-0000-011c89590282(jetbrains.mps.lang.core.behavior)" implicit="true" />
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" implicit="true" />
     <import index="hypd" ref="r:aa31e43e-9240-4f4d-b6db-5c1c9a86c59e(jetbrains.mps.lang.project.structure)" implicit="true" />
diff --git a/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/jetbrains.mps.lang.typesystem2.runtime.msd b/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/jetbrains.mps.lang.typesystem2.runtime.msd
index 5a6155de..d8c2944e 100644
--- a/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/jetbrains.mps.lang.typesystem2.runtime.msd
+++ b/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/jetbrains.mps.lang.typesystem2.runtime.msd
@@ -13,7 +13,6 @@
     <dependency reexport="false">bbf5c548-7111-4a53-a117-cdefc664cf34(jetbrains.mps.logic.reactor)</dependency>
     <dependency reexport="false">ff6372a2-2f45-4ec3-952b-02581666015f(jetbrains.mps.lang.typesystem2.template)</dependency>
     <dependency reexport="false">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
-    <dependency reexport="false">274c9cfa-1024-4444-904c-f2f1383a35da(jetbrains.mps.lang.typesystem2.helper)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="5" />
@@ -40,7 +39,6 @@
     <module reference="d7eb0a2a-bd50-4576-beae-e4a89db35f20(jetbrains.mps.lang.scopes.runtime)" version="0" />
     <module reference="c72da2b9-7cce-4447-8389-f407dc1158b7(jetbrains.mps.lang.structure)" version="0" />
     <module reference="9ded098b-ad6a-4657-bfd9-48636cfe8bc3(jetbrains.mps.lang.traceable)" version="0" />
-    <module reference="274c9cfa-1024-4444-904c-f2f1383a35da(jetbrains.mps.lang.typesystem2.helper)" version="0" />
     <module reference="26e8f4ce-2a35-4f44-8065-e5ba154b18e9(jetbrains.mps.lang.typesystem2.runtime)" version="0" />
     <module reference="ff6372a2-2f45-4ec3-952b-02581666015f(jetbrains.mps.lang.typesystem2.template)" version="0" />
     <module reference="bbf5c548-7111-4a53-a117-cdefc664cf34(jetbrains.mps.logic.reactor)" version="0" />
diff --git a/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/models/jetbrains/mps/lang/typesystem2/typechecking.mps b/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/models/jetbrains.mps.lang.typesystem2.evaluation.mps
similarity index 68%
rename from typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/models/jetbrains/mps/lang/typesystem2/typechecking.mps
rename to typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/models/jetbrains.mps.lang.typesystem2.evaluation.mps
index e33e97f6..faf0b13b 100644
--- a/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/models/jetbrains/mps/lang/typesystem2/typechecking.mps
+++ b/typesystem2/languages/jetbrains.mps.lang.typesystem2/runtime/models/jetbrains.mps.lang.typesystem2.evaluation.mps
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<model ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.typechecking)">
+<model ref="r:2b43b673-12f9-49ea-8e43-d0c7a401586a(jetbrains.mps.lang.typesystem2.evaluation)">
   <persistence version="9" />
   <languages>
     <use id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage" version="5" />
@@ -21,20 +21,14 @@
     <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" />
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" />
     <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" />
-    <import index="bj13" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.logical(jetbrains.mps.logic.reactor/)" />
     <import index="6exd" ref="r:0f9b1fb3-00f9-4480-b235-1a906a087ab2(jetbrains.mps.logic.treeform)" />
     <import index="fqlx" ref="r:2cc226a9-8a78-4010-b962-823343fd28ff(jetbrains.mps.lang.typesystem2.aspect)" />
     <import index="7n8k" ref="r:475a2e92-d7d4-41c3-98e3-172d70b6f018(jetbrains.mps.logic.builtin.program)" />
     <import index="nz6g" ref="r:ac00f724-30be-446e-805c-2345efc460d7(jetbrains.mps.lang.typesystem2.program)" />
     <import index="18ew" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.util(MPS.Core/)" />
-    <import index="psr6" ref="r:ce187d46-c94b-47d6-8d77-26aa6af239e8(jetbrains.mps.lang.typesystem2.type)" />
     <import index="tpck" ref="r:00000000-0000-4000-0000-011c89590288(jetbrains.mps.lang.core.structure)" />
     <import index="tpcu" ref="r:00000000-0000-4000-0000-011c89590282(jetbrains.mps.lang.core.behavior)" />
     <import index="c17a" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.language(MPS.OpenAPI/)" />
-    <import index="lui2" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.module(MPS.OpenAPI/)" />
-    <import index="umch" ref="r:4caa22a9-5195-4617-8800-5f9f74cc4480(jetbrains.mps.lang.typesystem2.helper.plugin)" />
-    <import index="zx3l" ref="bbf5c548-7111-4a53-a117-cdefc664cf34/java:jetbrains.mps.logic.reactor.core(jetbrains.mps.logic.reactor/)" />
-    <import index="cmfw" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.event(MPS.OpenAPI/)" />
     <import index="ni5j" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util.regex(JDK/)" />
     <import index="tpee" ref="r:00000000-0000-4000-0000-011c895902ca(jetbrains.mps.baseLanguage.structure)" />
   </imports>
@@ -52,7 +46,6 @@
       </concept>
     </language>
     <language id="f3061a53-9226-4cc5-a443-f952ceaf5816" name="jetbrains.mps.baseLanguage">
-      <concept id="1080223426719" name="jetbrains.mps.baseLanguage.structure.OrExpression" flags="nn" index="22lmx$" />
       <concept id="1219920932475" name="jetbrains.mps.baseLanguage.structure.VariableArityType" flags="in" index="8X2XB">
         <child id="1219921048460" name="componentType" index="8Xvag" />
       </concept>
@@ -63,7 +56,6 @@
         <child id="1068498886297" name="rValue" index="37vLTx" />
         <child id="1068498886295" name="lValue" index="37vLTJ" />
       </concept>
-      <concept id="4836112446988635817" name="jetbrains.mps.baseLanguage.structure.UndefinedType" flags="in" index="2jxLKc" />
       <concept id="1202948039474" name="jetbrains.mps.baseLanguage.structure.InstanceMethodCallOperation" flags="nn" index="liA8E" />
       <concept id="1465982738277781862" name="jetbrains.mps.baseLanguage.structure.PlaceholderMember" flags="ng" index="2tJIrI" />
       <concept id="1076505808687" name="jetbrains.mps.baseLanguage.structure.WhileStatement" flags="nn" index="2$JKZl">
@@ -133,10 +125,6 @@
       <concept id="1164991038168" name="jetbrains.mps.baseLanguage.structure.ThrowStatement" flags="nn" index="YS8fn">
         <child id="1164991057263" name="throwable" index="YScLw" />
       </concept>
-      <concept id="1081256982272" name="jetbrains.mps.baseLanguage.structure.InstanceOfExpression" flags="nn" index="2ZW3vV">
-        <child id="1081256993305" name="classType" index="2ZW6by" />
-        <child id="1081256993304" name="leftExpression" index="2ZW6bz" />
-      </concept>
       <concept id="1070533707846" name="jetbrains.mps.baseLanguage.structure.StaticFieldReference" flags="nn" index="10M0yZ">
         <reference id="1144433057691" name="classifier" index="1PxDUh" />
       </concept>
@@ -150,10 +138,7 @@
         <child id="1070534934091" name="type" index="10QFUM" />
         <child id="1070534934092" name="expression" index="10QFUP" />
       </concept>
-      <concept id="1068390468200" name="jetbrains.mps.baseLanguage.structure.FieldDeclaration" flags="ig" index="312cEg">
-        <property id="8606350594693632173" name="isTransient" index="eg7rD" />
-        <property id="1240249534625" name="isVolatile" index="34CwA1" />
-      </concept>
+      <concept id="1068390468200" name="jetbrains.mps.baseLanguage.structure.FieldDeclaration" flags="ig" index="312cEg" />
       <concept id="1068390468198" name="jetbrains.mps.baseLanguage.structure.ClassConcept" flags="ig" index="312cEu">
         <property id="1075300953594" name="abstractClass" index="1sVAO0" />
         <child id="1095933932569" name="implementedInterface" index="EKbjA" />
@@ -201,7 +186,6 @@
         <child id="1082485599094" name="ifFalseStatement" index="9aQIa" />
         <child id="1068580123160" name="condition" index="3clFbw" />
         <child id="1068580123161" name="ifTrue" index="3clFbx" />
-        <child id="1206060520071" name="elsifClauses" index="3eNLev" />
       </concept>
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
@@ -222,10 +206,6 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1206060495898" name="jetbrains.mps.baseLanguage.structure.ElsifClause" flags="ng" index="3eNFk2">
-        <child id="1206060619838" name="condition" index="3eO9$A" />
-        <child id="1206060644605" name="statementList" index="3eOfB_" />
-      </concept>
       <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
         <child id="1079359253376" name="expression" index="1eOMHV" />
       </concept>
@@ -260,7 +240,6 @@
       </concept>
       <concept id="1214918800624" name="jetbrains.mps.baseLanguage.structure.PostfixIncrementExpression" flags="nn" index="3uNrnE" />
       <concept id="1073239437375" name="jetbrains.mps.baseLanguage.structure.NotEqualsExpression" flags="nn" index="3y3z36" />
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@@ -309,7 +288,6 @@
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@@ -363,15 +341,12 @@
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@@ -383,9 +358,6 @@
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@@ -521,8 +488,6 @@
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     <property role="TrG5h" value="Memoizer" />
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@@ -5643,6 +4802,7 @@
       </node>
     </node>
     <node concept="2tJIrI" id="1CcQBrPgJ1_" role="jymVt" />
+    <node concept="3Tm1VV" id="55Q$YFtwNr_" role="1B3o_S" />
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   <node concept="312cEu" id="7Oc59RSEjdb">
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@@ -6330,2574 +5490,6 @@
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-                                <ref role="3cqZAo" node="6QH_LDtbV58" resolve="tplApp" />
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-                                <node concept="2OqwBi" id="6QH_LDtbV5j" role="37wK5m">
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-                              </node>
-                            </node>
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-                              <node concept="3SKdUq" id="6QH_LDtbV5q" role="3SKWNk">
-                                <property role="3SKdUp" value="FIXME: report errors" />
-                              </node>
-                            </node>
-                            <node concept="3cpWs6" id="6QH_LDtbV5r" role="3cqZAp" />
-                          </node>
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-                          <node concept="3SKdUq" id="6$7vuu2v7qD" role="3SKWNk">
-                            <property role="3SKdUp" value="FIXME: move the initialization to the plugin" />
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-                        </node>
-                        <node concept="3clFbF" id="3F6vMxqjuT0" role="3cqZAp">
-                          <node concept="2OqwBi" id="3F6vMxqjuT1" role="3clFbG">
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-                              <ref role="1PxDUh" to="zx3l:~EvaluationSessionImpl" resolve="EvaluationSessionImpl" />
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-                            <node concept="liA8E" id="3F6vMxqjuT3" role="2OqNvi">
-                              <ref role="37wK5l" to="zx3l:~EvaluationSessionImpl$Companion.init():void" resolve="init" />
-                            </node>
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-                          <node concept="3clFbS" id="6$7vuu2uZbb" role="2GV8ay">
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-                                    <property role="TrG5h" value="config" />
-                                    <node concept="3uibUv" id="6QH_LDtbV5K" role="1tU5fm">
-                                      <ref role="3uigEE" to="w7la:~EvaluationSession$Config" resolve="EvaluationSession.Config" />
-                                    </node>
-                                    <node concept="2YIFZM" id="6QH_LDtbV5L" role="33vP2m">
-                                      <ref role="1Pybhc" to="w7la:~EvaluationSession" resolve="EvaluationSession" />
-                                      <ref role="37wK5l" to="w7la:~EvaluationSession.newSession(jetbrains.mps.logic.reactor.program.Program):jetbrains.mps.logic.reactor.evaluation.EvaluationSession$Config" resolve="newSession" />
-                                      <node concept="37vLTw" id="1CcQBrQsxkQ" role="37wK5m">
-                                        <ref role="3cqZAo" node="1CcQBrQssF3" resolve="program" />
-                                      </node>
-                                    </node>
-                                  </node>
-                                </node>
-                                <node concept="3cpWs8" id="6QH_LDtbV6a" role="3cqZAp">
-                                  <node concept="3cpWsn" id="6QH_LDtbV6b" role="3cpWs9">
-                                    <property role="TrG5h" value="res2" />
-                                    <node concept="3uibUv" id="6QH_LDtbV6c" role="1tU5fm">
-                                      <ref role="3uigEE" node="7Oc59RSEjdb" resolve="Result" />
-                                    </node>
-                                    <node concept="2OqwBi" id="6QH_LDtbV6d" role="33vP2m">
-                                      <node concept="37vLTw" id="6QH_LDtbV6e" role="2Oq$k0">
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-                                        <node concept="10M0yZ" id="6QH_LDtbV6h" role="37wK5m">
-                                          <ref role="1PxDUh" to="yg8f:qubcdtxBiR" resolve="EvaluationTraceExt" />
-                                          <ref role="3cqZAo" to="yg8f:24Vro6cS5rK" resolve="NULL" />
-                                        </node>
-                                      </node>
-                                    </node>
-                                  </node>
-                                </node>
-                                <node concept="3clFbJ" id="6QH_LDtbV6m" role="3cqZAp">
-                                  <node concept="3clFbS" id="6QH_LDtbV6n" role="3clFbx">
-                                    <node concept="3SKdUt" id="6QH_LDtbV6o" role="3cqZAp">
-                                      <node concept="3SKdUq" id="6QH_LDtbV6p" role="3SKWNk">
-                                        <property role="3SKdUp" value="FIXME: report errors" />
-                                      </node>
-                                    </node>
-                                    <node concept="3cpWs6" id="6QH_LDtbV6q" role="3cqZAp" />
-                                  </node>
-                                  <node concept="3fqX7Q" id="6QH_LDtbV6v" role="3clFbw">
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-                                      <node concept="37vLTw" id="6QH_LDtbV6x" role="2Oq$k0">
-                                        <ref role="3cqZAo" node="6QH_LDtbV6b" resolve="res2" />
-                                      </node>
-                                      <node concept="liA8E" id="6QH_LDtbV6y" role="2OqNvi">
-                                        <ref role="37wK5l" node="7Oc59RS_hsj" resolve="isSuccessful" />
-                                      </node>
-                                    </node>
-                                  </node>
-                                </node>
-                              </node>
-                              <node concept="3cpWsn" id="1CcQBrQssF3" role="1Duv9x">
-                                <property role="TrG5h" value="program" />
-                                <node concept="3uibUv" id="1CcQBrQssF7" role="1tU5fm">
-                                  <ref role="3uigEE" to="av0y:~Program" resolve="Program" />
-                                </node>
-                              </node>
-                              <node concept="2OqwBi" id="1CcQBrQssF8" role="1DdaDG">
-                                <node concept="37vLTw" id="1CcQBrQssF9" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="6QH_LDtbV58" resolve="tplApp" />
-                                </node>
-                                <node concept="liA8E" id="1CcQBrQssFa" role="2OqNvi">
-                                  <ref role="37wK5l" node="3GlpCDSyO$P" resolve="getPrograms" />
-                                </node>
-                              </node>
-                            </node>
-                            <node concept="3clFbH" id="6$7vuu2uZba" role="3cqZAp" />
-                          </node>
-                          <node concept="3clFbS" id="6$7vuu2uZbc" role="2GVbov">
-                            <node concept="3clFbF" id="6$7vuu2uR6h" role="3cqZAp">
-                              <node concept="2OqwBi" id="6$7vuu2uR6i" role="3clFbG">
-                                <node concept="10M0yZ" id="5cDlfXt5gwP" role="2Oq$k0">
-                                  <ref role="3cqZAo" to="zx3l:~EvaluationSessionImpl.Companion" resolve="Companion" />
-                                  <ref role="1PxDUh" to="zx3l:~EvaluationSessionImpl" resolve="EvaluationSessionImpl" />
-                                </node>
-                                <node concept="liA8E" id="6$7vuu2uR6k" role="2OqNvi">
-                                  <ref role="37wK5l" to="zx3l:~EvaluationSessionImpl$Companion.deinit():void" resolve="deinit" />
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="3clFbH" id="6QH_LDtbV6z" role="3cqZAp" />
-                        <node concept="3cpWs8" id="1CcQBrQng1x" role="3cqZAp">
-                          <node concept="3cpWsn" id="1CcQBrQng1y" role="3cpWs9">
-                            <property role="TrG5h" value="types" />
-                            <node concept="3uibUv" id="1CcQBrQng1v" role="1tU5fm">
-                              <ref role="3uigEE" node="6HT7BWBSFOV" resolve="TypeCollector" />
-                            </node>
-                            <node concept="2ShNRf" id="1CcQBrQng1z" role="33vP2m">
-                              <node concept="1pGfFk" id="1CcQBrQng1$" role="2ShVmc">
-                                <ref role="37wK5l" node="1CcQBrQmOiH" resolve="TypeCollector" />
-                                <node concept="2OqwBi" id="1CcQBrQng1_" role="37wK5m">
-                                  <node concept="37vLTw" id="1CcQBrQng1A" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="6QH_LDtbV5Q" resolve="evaluator" />
-                                  </node>
-                                  <node concept="liA8E" id="1CcQBrQng1B" role="2OqNvi">
-                                    <ref role="37wK5l" node="5cnt3vh3pb_" resolve="storeView" />
-                                  </node>
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="1DcWWT" id="1CcQBrQnsvH" role="3cqZAp">
-                          <node concept="3clFbS" id="1CcQBrQnsvK" role="2LFqv$">
-                            <node concept="3cpWs8" id="1CcQBrQnBNC" role="3cqZAp">
-                              <node concept="3cpWsn" id="1CcQBrQnBND" role="3cpWs9">
-                                <property role="TrG5h" value="typeNode" />
-                                <node concept="3Tqbb2" id="1CcQBrQnBNA" role="1tU5fm" />
-                                <node concept="2OqwBi" id="1CcQBrQnBNE" role="33vP2m">
-                                  <node concept="37vLTw" id="1CcQBrQnBNF" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="1CcQBrQng1y" resolve="types" />
-                                  </node>
-                                  <node concept="liA8E" id="1CcQBrQnBNG" role="2OqNvi">
-                                    <ref role="37wK5l" node="1CcQBrQmO_H" resolve="typeNode" />
-                                    <node concept="37vLTw" id="1CcQBrQnNLi" role="37wK5m">
-                                      <ref role="3cqZAo" node="1CcQBrQnsvL" resolve="ref" />
-                                    </node>
-                                  </node>
-                                </node>
-                              </node>
-                            </node>
-                            <node concept="3clFbJ" id="1CcQBrQnCWs" role="3cqZAp">
-                              <node concept="3clFbS" id="1CcQBrQnCWw" role="3clFbx">
-                                <node concept="3clFbF" id="6QH_LDtd3NQ" role="3cqZAp">
-                                  <node concept="2OqwBi" id="6QH_LDtd4E_" role="3clFbG">
-                                    <node concept="37vLTw" id="6QH_LDtd3NO" role="2Oq$k0">
-                                      <ref role="3cqZAo" node="6QH_LDtbKDF" resolve="typesCache" />
-                                    </node>
-                                    <node concept="liA8E" id="6QH_LDtd5_I" role="2OqNvi">
-                                      <ref role="37wK5l" node="6QH_LDtcYUC" resolve="putType" />
-                                      <node concept="37vLTw" id="1CcQBrQnUWs" role="37wK5m">
-                                        <ref role="3cqZAo" node="1CcQBrQnsvL" resolve="ref" />
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-                                      <node concept="2OqwBi" id="1CcQBrQnSY7" role="37wK5m">
-                                        <node concept="37vLTw" id="1CcQBrQnSY8" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="6QH_LDtbL9R" resolve="typesModel" />
-                                        </node>
-                                        <node concept="3BYIHo" id="1CcQBrQnSY9" role="2OqNvi">
-                                          <node concept="37vLTw" id="1CcQBrQnSYa" role="3BYIHq">
-                                            <ref role="3cqZAo" node="1CcQBrQnBND" resolve="typeNode" />
-                                          </node>
-                                        </node>
-                                      </node>
-                                    </node>
-                                  </node>
-                                </node>
-                              </node>
-                              <node concept="3y3z36" id="1CcQBrQnF63" role="3clFbw">
-                                <node concept="10Nm6u" id="1CcQBrQnGqG" role="3uHU7w" />
-                                <node concept="37vLTw" id="1CcQBrQnDXR" role="3uHU7B">
-                                  <ref role="3cqZAo" node="1CcQBrQnBND" resolve="typeNode" />
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                          <node concept="3cpWsn" id="1CcQBrQnsvL" role="1Duv9x">
-                            <property role="TrG5h" value="ref" />
-                            <node concept="3uibUv" id="1CcQBrQnsvP" role="1tU5fm">
-                              <ref role="3uigEE" to="mhbf:~SNodeReference" resolve="SNodeReference" />
-                            </node>
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-                          <node concept="2OqwBi" id="1CcQBrQnsvQ" role="1DdaDG">
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-                              <ref role="3cqZAo" node="1CcQBrQng1y" resolve="types" />
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-                            <node concept="liA8E" id="1CcQBrQnsvS" role="2OqNvi">
-                              <ref role="37wK5l" node="1CcQBrQnllM" resolve="typedNodeReferences" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                      <node concept="37vLTG" id="6QH_LDtbKDF" role="1bW2Oz">
-                        <property role="TrG5h" value="typesCache" />
-                        <node concept="3uibUv" id="6QH_LDtc$AA" role="1tU5fm">
-                          <ref role="3uigEE" node="6QH_LDtcxgf" resolve="Typechecking.UpdatableTypeCache" />
-                        </node>
-                      </node>
-                    </node>
-                  </node>
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-            </node>
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-              <node concept="2OqwBi" id="6QH_LDtcdEO" role="3cqZAk">
-                <node concept="37vLTw" id="6QH_LDtcdEP" role="2Oq$k0">
-                  <ref role="3cqZAo" node="7kaxm0sEDgr" resolve="typesCache" />
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-                <node concept="liA8E" id="6QH_LDtcdEQ" role="2OqNvi">
-                  <ref role="37wK5l" node="6QH_LDtffJj" resolve="typeOf" />
-                  <node concept="37vLTw" id="6QH_LDtcdER" role="37wK5m">
-                    <ref role="3cqZAo" node="7kaxm0sEBL9" resolve="node" />
-                  </node>
-                </node>
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-          </node>
-          <node concept="3y3z36" id="6QH_LDtcb3M" role="3clFbw">
-            <node concept="10Nm6u" id="6QH_LDtcbO8" role="3uHU7w" />
-            <node concept="37vLTw" id="6QH_LDtcahc" role="3uHU7B">
-              <ref role="3cqZAo" node="7kaxm0sEDgr" resolve="typesCache" />
-            </node>
-          </node>
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-        <node concept="3clFbF" id="6QH_LDtchhk" role="3cqZAp">
-          <node concept="10Nm6u" id="6QH_LDtchhi" role="3clFbG" />
-        </node>
-      </node>
-      <node concept="P$JXv" id="7kaxm0sEBMI" role="lGtFl">
-        <node concept="TZ5HA" id="7kaxm0sEBMJ" role="TZ5H$">
-          <node concept="1dT_AC" id="7kaxm0sEBMK" role="1dT_Ay">
-            <property role="1dT_AB" value="Must be called in a read action." />
-          </node>
-        </node>
-      </node>
-    </node>
-    <node concept="2tJIrI" id="6QH_LDtaCb7" role="jymVt" />
-    <node concept="3Tm1VV" id="7kaxm0sEy3f" role="1B3o_S" />
-  </node>
   <node concept="312cEu" id="6fdr4UgftiG">
     <property role="TrG5h" value="RuleTemplateIndex" />
     <node concept="2tJIrI" id="20Ay2VeQfgH" role="jymVt" />
diff --git a/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/jetbrains.mps.lang.typesystem2.helper.msd b/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/jetbrains.mps.lang.typesystem2.helper.msd
index c183c1e3..95599c6c 100644
--- a/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/jetbrains.mps.lang.typesystem2.helper.msd
+++ b/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/jetbrains.mps.lang.typesystem2.helper.msd
@@ -9,7 +9,7 @@
   <dependencies>
     <dependency reexport="false">6ed54515-acc8-4d1e-a16c-9fd6cfe951ea(MPS.Core)</dependency>
     <dependency reexport="false">6354ebe7-c22a-4a0f-ac54-50b52ab9b065(JDK)</dependency>
-    <dependency reexport="false">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
+    <dependency reexport="true">8865b7a8-5271-43d3-884c-6fd1d9cfdd34(MPS.OpenAPI)</dependency>
   </dependencies>
   <languageVersions>
     <language slang="l:f3061a53-9226-4cc5-a443-f952ceaf5816:jetbrains.mps.baseLanguage" version="5" />
@@ -22,6 +22,7 @@
     <language slang="l:ceab5195-25ea-4f22-9b92-103b95ca8c0c:jetbrains.mps.lang.core" version="1" />
     <language slang="l:28f9e497-3b42-4291-aeba-0a1039153ab1:jetbrains.mps.lang.plugin" version="2" />
     <language slang="l:ef7bf5ac-d06c-4342-b11d-e42104eb9343:jetbrains.mps.lang.plugin.standalone" version="0" />
+    <language slang="l:7866978e-a0f0-4cc7-81bc-4d213d9375e1:jetbrains.mps.lang.smodel" version="8" />
     <language slang="l:9ded098b-ad6a-4657-bfd9-48636cfe8bc3:jetbrains.mps.lang.traceable" version="0" />
   </languageVersions>
   <dependencyVersions>
diff --git a/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/models/jetbrains/mps/lang/typesystem2/helper/plugin.mps b/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/models/jetbrains/mps/lang/typesystem2/helper/plugin.mps
index 6e4435be..7812d566 100644
--- a/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/models/jetbrains/mps/lang/typesystem2/helper/plugin.mps
+++ b/typesystem2/solutions/jetbrains.mps.lang.typesystem2.helper/models/jetbrains/mps/lang/typesystem2/helper/plugin.mps
@@ -6,6 +6,8 @@
     <use id="ef7bf5ac-d06c-4342-b11d-e42104eb9343" name="jetbrains.mps.lang.plugin.standalone" version="0" />
     <use id="f2801650-65d5-424e-bb1b-463a8781b786" name="jetbrains.mps.baseLanguage.javadoc" version="2" />
     <use id="760a0a8c-eabb-4521-8bfd-65db761a9ba3" name="jetbrains.mps.baseLanguage.logging" version="0" />
+    <use id="7866978e-a0f0-4cc7-81bc-4d213d9375e1" name="jetbrains.mps.lang.smodel" version="8" />
+    <use id="fd392034-7849-419d-9071-12563d152375" name="jetbrains.mps.baseLanguage.closures" version="0" />
   </languages>
   <imports>
     <import index="z1c3" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.project(MPS.Core/)" />
@@ -17,6 +19,8 @@
     <import index="33ny" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util(JDK/)" />
     <import index="lui2" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.module(MPS.OpenAPI/)" />
     <import index="31cb" ref="6ed54515-acc8-4d1e-a16c-9fd6cfe951ea/java:jetbrains.mps.extapi.module(MPS.Core/)" />
+    <import index="5zyv" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.util.concurrent(JDK/)" />
+    <import index="mhbf" ref="8865b7a8-5271-43d3-884c-6fd1d9cfdd34/java:org.jetbrains.mps.openapi.model(MPS.OpenAPI/)" />
     <import index="wyt6" ref="6354ebe7-c22a-4a0f-ac54-50b52ab9b065/java:java.lang(JDK/)" implicit="true" />
   </imports>
   <registry>