diff --git a/samples/mpscore/build.xml b/samples/mpscore/build.xml
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diff --git a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/jetbrains.mps.baseLanguageExt.test.msd b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/jetbrains.mps.baseLanguageExt.test.msd
index d0f73a3c..0f167fee 100644
--- a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/jetbrains.mps.baseLanguageExt.test.msd
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/jetbrains.mps.baseLanguageExt.test.msd
@@ -17,13 +17,18 @@
3ddddf69-9ff0-426b-9365-51ae7356fb82(typechecking.samples.baseLanguage)
6998f568-f0e9-473b-b4a8-9efb6499fc8d(jetbrains.mps.coderules.typechecking)
f3061a53-9226-4cc5-a443-f952ceaf5816(jetbrains.mps.baseLanguage)
+ c9670c16-a215-41fb-8784-04b14329799d(jetbrains.mps.coderules.typechecking.test)
+ 7a5dda62-9140-4668-ab76-d5ed1746f2b2(jetbrains.mps.lang.typesystem)
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/features.mps b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.features.mps
similarity index 93%
rename from samples/mpscore/solutions/typechecking.samples.baseLanguage/models/features.mps
rename to samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.features.mps
index b734d6e7..5bd6eb7b 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/features.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.features.mps
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diff --git a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.generics.mps b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.generics.mps
new file mode 100644
index 00000000..f8698364
--- /dev/null
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.generics.mps
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/staging.mps b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.staging.mps
similarity index 67%
rename from samples/mpscore/solutions/typechecking.samples.baseLanguage/models/staging.mps
rename to samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.staging.mps
index becad332..aefb441a 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/staging.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.staging.mps
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.codeAnal.mps b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.thinlet.mps
similarity index 99%
rename from samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.codeAnal.mps
rename to samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.thinlet.mps
index fa78e9cb..67ca1f45 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.codeAnal.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.code.thinlet.mps
@@ -1,5 +1,5 @@
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new file mode 100644
index 00000000..6351773b
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similarity index 92%
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rename to samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.features@tests.mps
index 5f6ed332..b63971cf 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/features@tests.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.features@tests.mps
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similarity index 62%
rename from samples/mpscore/solutions/typechecking.samples.baseLanguage/models/slice@tests.mps
rename to samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.generics@tests.mps
index b80157b6..e5b51d08 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/slice@tests.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.generics@tests.mps
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.incrementalBL@tests.mps b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.incremental@tests.mps
similarity index 99%
rename from samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.incrementalBL@tests.mps
rename to samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.incremental@tests.mps
index 88f33588..94c3a361 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.incrementalBL@tests.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.incremental@tests.mps
@@ -1,5 +1,5 @@
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/codeAnal@tests.mps b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.thinlet@tests.mps
similarity index 98%
rename from samples/mpscore/solutions/typechecking.samples.baseLanguage/models/codeAnal@tests.mps
rename to samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.thinlet@tests.mps
index 342ec56b..5341fc4d 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/codeAnal@tests.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.thinlet@tests.mps
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index 2eb48c96..127f3196 100644
--- a/samples/mpscore/solutions/samples.mpscore.build/models/samples.mpscore.build.mps
+++ b/samples/mpscore/solutions/samples.mpscore.build/models/samples.mpscore.build.mps
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deleted file mode 100644
index 0280614f..00000000
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/bounds.bad@tests.mps
+++ /dev/null
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/bounds@tests.mps b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/bounds@tests.mps
index 00cb0ba3..90b32061 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/bounds@tests.mps
+++ b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/bounds@tests.mps
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/helloWorld@tests.mps b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/helloWorld@tests.mps
index b572ba93..5a7ab18f 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/helloWorld@tests.mps
+++ b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/helloWorld@tests.mps
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/simpleGenerics@tests.mps b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/simpleGenerics@tests.mps
deleted file mode 100644
index 5585a50f..00000000
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/simpleGenerics@tests.mps
+++ /dev/null
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.bounds.bad.mps b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.bounds.bad.mps
index a89afb86..b9087528 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.bounds.bad.mps
+++ b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.bounds.bad.mps
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.bounds.mps b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.bounds.mps
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/testHuge.mps b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.hugeSample.mps
similarity index 99%
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index 04541a90..d1db7b66 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/testHuge.mps
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.simpleGenerics.mps b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.simpleGenerics.mps
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index 47a87f25..00000000
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.simpleGenerics.mps
+++ /dev/null
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.slice.mps b/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.slice.mps
deleted file mode 100644
index cb0e285a..00000000
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/models/typechecking.samples.baseLanguage.slice.mps
+++ /dev/null
@@ -1,1161 +0,0 @@
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diff --git a/samples/mpscore/solutions/typechecking.samples.baseLanguage/typechecking.samples.baseLanguage.msd b/samples/mpscore/solutions/typechecking.samples.baseLanguage/typechecking.samples.baseLanguage.msd
index fa2613f2..635b0ebd 100644
--- a/samples/mpscore/solutions/typechecking.samples.baseLanguage/typechecking.samples.baseLanguage.msd
+++ b/samples/mpscore/solutions/typechecking.samples.baseLanguage/typechecking.samples.baseLanguage.msd
@@ -16,6 +16,7 @@
bbf5c548-7111-4a53-a117-cdefc664cf34(jetbrains.mps.logic.reactor)
c4803b19-6d89-4a3b-bf82-390769514add(jetbrains.mps.lang.coderules)
7a5dda62-9140-4668-ab76-d5ed1746f2b2(jetbrains.mps.lang.typesystem)
+ e44e7802-2e40-482b-9b1c-6d42660a6a11(jetbrains.mps.baseLanguageExt.test)
@@ -49,6 +50,7 @@
+