diff --git a/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps b/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
index 29fa280d..314cae13 100644
--- a/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
+++ b/samples/mpscore/languages/jetbrains.mps.baseLanguageExt/models/jetbrains.mps.baseLanguageExt.types.mps
@@ -700,6 +700,10 @@
         <child id="7889373009908940350" name="valueProvider" index="21kp3d" />
         <child id="7889373009908940348" name="key" index="21kp3f" />
       </concept>
+      <concept id="7326790520856487884" name="jetbrains.mps.lang.coderules.structure.ProvideFeedbackOperation" flags="ng" index="26X5F$">
+        <property id="7326790520856501351" name="severity" index="26X25f" />
+        <child id="7326790520856501349" name="message" index="26X25d" />
+      </concept>
       <concept id="1980609059169917031" name="jetbrains.mps.lang.coderules.structure.CopyItem" flags="ng" index="9KH4l">
         <child id="1980609059169917850" name="origin" index="9KHbC" />
       </concept>
@@ -37672,230 +37676,254 @@
           </node>
         </node>
         <node concept="3clFbJ" id="3c$Di5ODE7E" role="3cqZAp">
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-              <ref role="3cqZAo" node="4btN1w5LWif" resolve="tyArgs" />
+          <node concept="3clFbC" id="6zber0NgCyF" role="3clFbw">
+            <node concept="10Nm6u" id="6zber0NgCHp" role="3uHU7w" />
+            <node concept="37vLTw" id="6zber0NgChX" role="3uHU7B">
+              <ref role="3cqZAo" node="4btN1w5LWi9" resolve="cls" />
             </node>
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-                <node concept="3oM_SD" id="4btN1w5M62z" role="1PaTwD">
-                  <property role="3oM_SC" value="todo:" />
+          <node concept="3clFbS" id="6zber0Negxn" role="3clFbx">
+            <node concept="3clFbF" id="6zber0NgCHE" role="3cqZAp">
+              <node concept="2OqwBi" id="6zber0NgCZd" role="3clFbG">
+                <node concept="3A2sRY" id="6zber0NgCOJ" role="2Oq$k0">
+                  <ref role="3A2yKK" node="4btN1w5KirY" resolve="clsTy" />
                 </node>
-                <node concept="3oM_SD" id="4btN1w5M62$" role="1PaTwD">
-                  <property role="3oM_SC" value="where" />
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-                <node concept="3oM_SD" id="4btN1w5M62_" role="1PaTwD">
-                  <property role="3oM_SC" value="should" />
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-                <node concept="3oM_SD" id="4btN1w5M62A" role="1PaTwD">
-                  <property role="3oM_SC" value="ContextTVSubs" />
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-                <node concept="3oM_SD" id="4btN1w5M62B" role="1PaTwD">
-                  <property role="3oM_SC" value="come" />
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-                <node concept="3oM_SD" id="4btN1w5M62C" role="1PaTwD">
-                  <property role="3oM_SC" value="from?" />
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+                <node concept="26X5F$" id="6zber0NgDww" role="2OqNvi">
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+                  <node concept="Xl_RD" id="6zber0NgDwy" role="26X25d">
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+                    <property role="3oM_SC" value="todo:" />
+                  </node>
+                  <node concept="3oM_SD" id="4btN1w5M62$" role="1PaTwD">
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+                    <property role="3oM_SC" value="ContextTVSubs" />
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+                    <property role="3oM_SC" value="from?" />
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