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 67fe8a9f..cd80b8f5 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
@@ -2957,7 +2957,7 @@
       </node>
       <node concept="1zAsnw" id="2rIdnPuJSE1" role="lGtFl">
         <node concept="3SKdUq" id="2rIdnPuJSE2" role="27qylF">
-          <property role="3SKdUp" value="yields a list of &quot;subclassing paths&quot;, which all originate at classifier and go up to Object" />
+          <property role="3SKdUp" value="yields a list of &quot;subclassing paths&quot; with raw classifier values, which all originate at classifier and go up to Object" />
         </node>
       </node>
     </node>
@@ -2975,326 +2975,33 @@
         </node>
       </node>
     </node>
-    <node concept="1X3_iC" id="1X8x4UINNbF" role="lGtFl">
-      <property role="3V$3am" value="template" />
-      <property role="3V$3ak" value="c4803b19-6d89-4a3b-bf82-390769514add/8335224865066015764/3575255234175157601" />
-      <node concept="1nLNMY" id="2rIdnPuJSEv" role="8Wnug">
-        <property role="TrG5h" value="findSubclassPathsRaw_Classifier" />
-        <node concept="3clFbS" id="2rIdnPuJSEw" role="1nLNMH">
-          <node concept="3cpWs8" id="3jyhf9Jmm84" role="3cqZAp">
-            <node concept="3cpWsn" id="3jyhf9Jmm85" role="3cpWs9">
-              <property role="TrG5h" value="subtypePaths" />
-              <node concept="_YKpA" id="3jyhf9Jmm86" role="1tU5fm">
-                <node concept="_YKpA" id="3jyhf9Jmm87" role="_ZDj9">
-                  <node concept="3Tqbb2" id="3jyhf9Jmm88" role="_ZDj9">
-                    <ref role="ehGHo" to="tpee:g7uibYu" resolve="ClassifierType" />
-                  </node>
-                </node>
-              </node>
-              <node concept="2YIFZM" id="3jyhf9Jmm89" role="33vP2m">
-                <ref role="37wK5l" to="hano:2tjs8VC2Blb" resolve="getOrPut" />
-                <ref role="1Pybhc" to="hano:2tjs8VC0K0m" resolve="Memoizer" />
-                <node concept="3A2sRY" id="3jyhf9Jmm8a" role="37wK5m">
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-                      <node concept="2YIFZM" id="3jyhf9Jmm8e" role="3clFbG">
-                        <ref role="37wK5l" node="5H6hZahiCgu" resolve="allSubtypePathsTo" />
-                        <ref role="1Pybhc" node="tIwzd2cJHD" resolve="SubclassingUtil" />
-                        <node concept="3A2sRY" id="3jyhf9Jmm8f" role="37wK5m">
-                          <ref role="3A2yKK" node="2rIdnPuJSFs" resolve="cls" />
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-                <node concept="2qgKlT" id="2rIdnPuJSEL" role="2OqNvi">
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-                        <node concept="37vLTw" id="2rIdnPuJSER" role="2Oq$k0">
-                          <ref role="3cqZAo" node="2rIdnPuJSET" resolve="it" />
-                        </node>
-                        <node concept="3TrEf2" id="2rIdnPuJSES" role="2OqNvi">
-                          <ref role="3Tt5mk" to="tpee:g7uigIF" resolve="classifier" />
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-                                  <node concept="34oBXx" id="1qY0I4bFY4x" role="2OqNvi" />
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-                                    <property role="TrG5h" value="supertype" />
-                                    <node concept="3Tqbb2" id="1qY0I4bGlfm" role="1tU5fm">
-                                      <ref role="ehGHo" to="tpee:g7uibYu" resolve="ClassifierType" />
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+              <node concept="1bVj0M" id="6_5E9TNz4Wt" role="37wK5m">
+                <node concept="3clFbS" id="6_5E9TNz4Wu" role="1bW5cS">
+                  <node concept="3clFbF" id="6_5E9TNz4Wv" role="3cqZAp">
+                    <node concept="2YIFZM" id="6_5E9TN_9K1" role="3clFbG">
+                      <ref role="37wK5l" node="3jyhf9JmEv6" resolve="allInstSubtypePathsTo" />
                       <ref role="1Pybhc" node="tIwzd2cJHD" resolve="SubclassingUtil" />
-                      <node concept="3A2sRY" id="2Z5Bs_jvIhx" role="37wK5m">
-                        <ref role="3A2yKK" node="2Z5Bs_jvIjf" resolve="cls" />
+                      <node concept="3A2sRY" id="6_5E9TN_9K2" role="37wK5m">
+                        <ref role="3A2yKK" node="6_5E9TNz50W" resolve="cls" />
                       </node>
                     </node>
                   </node>
@@ -3303,190 +3010,174 @@
             </node>
           </node>
         </node>
-        <node concept="Oftf1" id="2Z5Bs_jvIhy" role="3cqZAp">
-          <node concept="2OqwBi" id="2Z5Bs_jvIhz" role="Oftjs">
-            <node concept="2OqwBi" id="2Z5Bs_jvIh$" role="2Oq$k0">
-              <node concept="3A2sRY" id="2Z5Bs_jvIh_" role="2Oq$k0">
-                <ref role="3A2yKK" node="2Z5Bs_jvIjf" resolve="cls" />
+        <node concept="Oftf1" id="6_5E9TNz4Wy" role="3cqZAp">
+          <node concept="2OqwBi" id="6_5E9TNz4Wz" role="Oftjs">
+            <node concept="2OqwBi" id="6_5E9TNz4W$" role="2Oq$k0">
+              <node concept="3A2sRY" id="6_5E9TNz4W_" role="2Oq$k0">
+                <ref role="3A2yKK" node="6_5E9TNz50W" resolve="cls" />
               </node>
-              <node concept="2qgKlT" id="2Z5Bs_jvIhA" role="2OqNvi">
+              <node concept="2qgKlT" id="6_5E9TNz4WA" role="2OqNvi">
                 <ref role="37wK5l" to="tpek:1UeCwxlWKny" resolve="getExtendedClassifierTypes" />
               </node>
             </node>
-            <node concept="3$u5V9" id="2Z5Bs_jvIhB" role="2OqNvi">
-              <node concept="1bVj0M" id="2Z5Bs_jvIhC" role="23t8la">
-                <node concept="3clFbS" id="2Z5Bs_jvIhD" role="1bW5cS">
-                  <node concept="3clFbF" id="2Z5Bs_jvIhE" role="3cqZAp">
-                    <node concept="2OqwBi" id="2Z5Bs_jvIhF" role="3clFbG">
-                      <node concept="37vLTw" id="2Z5Bs_jvIhG" role="2Oq$k0">
-                        <ref role="3cqZAo" node="2Z5Bs_jvIhI" resolve="it" />
+            <node concept="3$u5V9" id="6_5E9TNz4WB" role="2OqNvi">
+              <node concept="1bVj0M" id="6_5E9TNz4WC" role="23t8la">
+                <node concept="3clFbS" id="6_5E9TNz4WD" role="1bW5cS">
+                  <node concept="3clFbF" id="6_5E9TNz4WE" role="3cqZAp">
+                    <node concept="2OqwBi" id="6_5E9TNz4WF" role="3clFbG">
+                      <node concept="37vLTw" id="6_5E9TNz4WG" role="2Oq$k0">
+                        <ref role="3cqZAo" node="6_5E9TNz4WI" resolve="it" />
                       </node>
-                      <node concept="3TrEf2" id="2Z5Bs_jvIhH" role="2OqNvi">
+                      <node concept="3TrEf2" id="6_5E9TNz4WH" role="2OqNvi">
                         <ref role="3Tt5mk" to="tpee:g7uigIF" resolve="classifier" />
                       </node>
                     </node>
                   </node>
                 </node>
-                <node concept="Rh6nW" id="2Z5Bs_jvIhI" role="1bW2Oz">
+                <node concept="Rh6nW" id="6_5E9TNz4WI" role="1bW2Oz">
                   <property role="TrG5h" value="it" />
-                  <node concept="2jxLKc" id="2Z5Bs_jvIhJ" role="1tU5fm" />
+                  <node concept="2jxLKc" id="6_5E9TNz4WJ" role="1tU5fm" />
                 </node>
               </node>
             </node>
           </node>
         </node>
-        <node concept="3clFbH" id="2Z5Bs_jwoGm" role="3cqZAp" />
-        <node concept="3cpWs8" id="2Z5Bs_jwnHP" role="3cqZAp">
-          <node concept="3cpWsn" id="2Z5Bs_jwnHQ" role="3cpWs9">
+        <node concept="3clFbH" id="6_5E9TNz4WK" role="3cqZAp" />
+        <node concept="3cpWs8" id="6_5E9TNz4WL" role="3cqZAp">
+          <node concept="3cpWsn" id="6_5E9TNz4WM" role="3cpWs9">
             <property role="TrG5h" value="tvds" />
-            <node concept="2OqwBi" id="2Z5Bs_jwnHR" role="33vP2m">
-              <node concept="3Tsc0h" id="2Z5Bs_jwnHV" role="2OqNvi">
+            <node concept="2OqwBi" id="6_5E9TNz4WN" role="33vP2m">
+              <node concept="3Tsc0h" id="6_5E9TNz4WO" role="2OqNvi">
                 <ref role="3TtcxE" to="tpee:g96eVAe" resolve="typeVariableDeclaration" />
               </node>
-              <node concept="3A2sRY" id="2Z5Bs_jwpVI" role="2Oq$k0">
-                <ref role="3A2yKK" node="2Z5Bs_jvIjf" resolve="cls" />
+              <node concept="3A2sRY" id="6_5E9TNz4WP" role="2Oq$k0">
+                <ref role="3A2yKK" node="6_5E9TNz50W" resolve="cls" />
               </node>
             </node>
-            <node concept="2I9FWS" id="2Z5Bs_jwnHW" role="1tU5fm">
+            <node concept="2I9FWS" id="6_5E9TNz4WQ" role="1tU5fm">
               <ref role="2I9WkF" to="tpee:g96euPO" resolve="TypeVariableDeclaration" />
             </node>
           </node>
         </node>
-        <node concept="3clFbH" id="2Z5Bs_jvIhK" role="3cqZAp" />
-        <node concept="1nLNNL" id="2Z5Bs_jvIhL" role="3cqZAp">
-          <node concept="1nLNMm" id="2Z5Bs_jvIhM" role="1nLNNK">
-            <node concept="3Aq93q" id="2Z5Bs_jvIhW" role="1nLNMb">
+        <node concept="3clFbH" id="6_5E9TNz4WR" role="3cqZAp" />
+        <node concept="1nLNNL" id="6_5E9TNz4WS" role="3cqZAp">
+          <node concept="1nLNMm" id="6_5E9TNz4WT" role="1nLNNK">
+            <node concept="3Aq93q" id="6_5E9TNz4WU" role="1nLNMb">
               <property role="3ArMco" value="false" />
-              <node concept="3I6sU6" id="2Z5Bs_jvIhX" role="3Ip0Jz">
-                <node concept="3I6s7M" id="2Z5Bs_jvIhY" role="3I6sU7">
-                  <node concept="3Aqt3T" id="2Z5Bs_jvIhZ" role="3I6s78">
+              <node concept="3I6sU6" id="6_5E9TNz4WV" role="3Ip0Jz">
+                <node concept="3I6s7M" id="6_5E9TNz4WW" role="3I6sU7">
+                  <node concept="3Aqt3T" id="6_5E9TNz4WX" role="3I6s78">
                     <ref role="3AqCNq" node="1qY0I4bFlcz" resolve="subclassPaths" />
-                    <node concept="a7P8L" id="2Z5Bs_jvIi0" role="3AunhB">
-                      <ref role="a7OzE" node="2Z5Bs_jvIhP" resolve="Res" />
+                    <node concept="a7P8L" id="6_5E9TNz4WY" role="3AunhB">
+                      <ref role="a7OzE" node="6_5E9TNz4Xa" resolve="Res" />
                     </node>
-                    <node concept="1HFMs5" id="2Z5Bs_jvIi1" role="3AunhB">
-                      <node concept="ns1u0" id="2Z5Bs_jvIi2" role="1uarlW">
+                    <node concept="1HFMs5" id="6_5E9TNz4WZ" role="3AunhB">
+                      <node concept="ns1u0" id="6_5E9TNz4X0" role="1uarlW">
                         <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifier" />
-                        <node concept="nsMwS" id="2Z5Bs_jvIi3" role="ns1xD">
+                        <node concept="nsMwS" id="6_5E9TNz4X1" role="ns1xD">
                           <ref role="nsMwP" node="JOGAOsVt2c" resolve="classifier" />
-                          <node concept="2OqwBi" id="2Z5Bs_jvIi4" role="nsMwV">
-                            <node concept="3A2sRY" id="2Z5Bs_jvIi5" role="2Oq$k0">
-                              <ref role="3A2yKK" node="2Z5Bs_jvIjf" resolve="cls" />
+                          <node concept="2OqwBi" id="6_5E9TNz4X2" role="nsMwV">
+                            <node concept="3A2sRY" id="6_5E9TNz4X3" role="2Oq$k0">
+                              <ref role="3A2yKK" node="6_5E9TNz50W" resolve="cls" />
                             </node>
-                            <node concept="iZEcu" id="2Z5Bs_jvIi6" role="2OqNvi" />
+                            <node concept="iZEcu" id="6_5E9TNz4X4" role="2OqNvi" />
                           </node>
                         </node>
-                        <node concept="nsMwS" id="2Z5Bs_jvK$Q" role="ns1xD">
+                        <node concept="nsMwS" id="6_5E9TNz4X5" role="ns1xD">
                           <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
-                          <node concept="1nq8_$" id="2Z5Bs_jvKG$" role="nsMwV">
-                            <node concept="a7P8L" id="2Z5Bs_jwj0g" role="1nq8_t">
-                              <ref role="a7OzE" node="2Z5Bs_jwiK$" resolve="TPs" />
+                          <node concept="1nq8_$" id="6_5E9TNz4X6" role="nsMwV">
+                            <node concept="a7P8L" id="6_5E9TNz4X7" role="1nq8_t">
+                              <ref role="a7OzE" node="6_5E9TNz4Xk" resolve="TPs" />
                             </node>
                           </node>
                         </node>
                       </node>
-                      <node concept="a7P8L" id="2Z5Bs_jvIi7" role="1uarlU">
-                        <ref role="a7OzE" node="2Z5Bs_jvIhQ" resolve="ClsType" />
+                      <node concept="a7P8L" id="6_5E9TNz4X8" role="1uarlU">
+                        <ref role="a7OzE" node="6_5E9TNz4Xb" resolve="ClsType" />
                       </node>
                     </node>
                   </node>
                 </node>
               </node>
             </node>
-            <node concept="3NuqgR" id="2Z5Bs_jvIhO" role="0Rg$4">
-              <node concept="aZer4" id="2Z5Bs_jvIhP" role="3XD1gS">
+            <node concept="3NuqgR" id="6_5E9TNz4X9" role="0Rg$4">
+              <node concept="aZer4" id="6_5E9TNz4Xa" role="3XD1gS">
                 <property role="TrG5h" value="Res" />
               </node>
-              <node concept="aZer4" id="2Z5Bs_jvIhQ" role="3XD1gS">
+              <node concept="aZer4" id="6_5E9TNz4Xb" role="3XD1gS">
                 <property role="TrG5h" value="ClsType" />
               </node>
-              <node concept="32pEOW" id="24ciDNzxNBs" role="3vLBG7" />
+              <node concept="32pEOW" id="6_5E9TNz4Xc" role="3vLBG7" />
             </node>
-            <node concept="3NuqgR" id="2Z5Bs_jvIhR" role="0Rg$4">
-              <node concept="aZer4" id="2Z5Bs_jvIhS" role="3XD1gS">
+            <node concept="3NuqgR" id="6_5E9TNz4Xd" role="0Rg$4">
+              <node concept="aZer4" id="6_5E9TNz4Xe" role="3XD1gS">
                 <property role="TrG5h" value="Paths" />
-                <node concept="2OqwBi" id="2Z5Bs_jvIhT" role="3gj$pD">
-                  <node concept="37vLTw" id="2Z5Bs_jvIhU" role="2Oq$k0">
-                    <ref role="3cqZAo" node="2Z5Bs_jvIhn" resolve="subtypePaths" />
+                <node concept="2OqwBi" id="6_5E9TNz4Xf" role="3gj$pD">
+                  <node concept="37vLTw" id="6_5E9TNz4Xg" role="2Oq$k0">
+                    <ref role="3cqZAo" node="6_5E9TNz4Wn" resolve="subtypePaths" />
                   </node>
-                  <node concept="34oBXx" id="2Z5Bs_jvIhV" role="2OqNvi" />
+                  <node concept="34oBXx" id="6_5E9TNz4Xh" role="2OqNvi" />
                 </node>
               </node>
-              <node concept="32pEOW" id="24ciDNzxNBt" role="3vLBG7" />
+              <node concept="32pEOW" id="6_5E9TNz4Xi" role="3vLBG7" />
             </node>
-            <node concept="3NuqgR" id="2Z5Bs_jwiKz" role="0Rg$4">
-              <node concept="aZer4" id="2Z5Bs_jwiK$" role="3XD1gS">
+            <node concept="3NuqgR" id="6_5E9TNz4Xj" role="0Rg$4">
+              <node concept="aZer4" id="6_5E9TNz4Xk" role="3XD1gS">
                 <property role="TrG5h" value="TPs" />
-                <node concept="2OqwBi" id="2Z5Bs_jwuZL" role="3gj$pD">
-                  <node concept="37vLTw" id="2Z5Bs_jwuoz" role="2Oq$k0">
-                    <ref role="3cqZAo" node="2Z5Bs_jwnHQ" resolve="tvds" />
+                <node concept="2OqwBi" id="6_5E9TNz4Xl" role="3gj$pD">
+                  <node concept="37vLTw" id="6_5E9TNz4Xm" role="2Oq$k0">
+                    <ref role="3cqZAo" node="6_5E9TNz4WM" resolve="tvds" />
                   </node>
-                  <node concept="34oBXx" id="2Z5Bs_jww8J" role="2OqNvi" />
+                  <node concept="34oBXx" id="6_5E9TNz4Xn" role="2OqNvi" />
                 </node>
               </node>
-              <node concept="32pEOW" id="24ciDNzxNBu" role="3vLBG7" />
+              <node concept="32pEOW" id="6_5E9TNz4Xo" role="3vLBG7" />
             </node>
-            <node concept="3xSepi" id="6E2cNicdihM" role="3xSepv">
-              <node concept="3Aq9E8" id="2Z5Bs_jvIi8" role="3xSepj">
-                <node concept="3I6sU6" id="2Z5Bs_jvIi9" role="3Ip0Jz">
-                  <node concept="3IrJb3" id="2Z5Bs_jvIia" role="3I6sU7">
-                    <node concept="3clFbS" id="2Z5Bs_jvIib" role="3IrJb0">
-                      <node concept="3Hbl2A" id="FSRqrndKPG" role="3cqZAp">
-                        <node concept="3clFbS" id="FSRqrndKPI" role="9aQI4">
-                          <node concept="3SKdUt" id="2Z5Bs_jx2Fg" role="3cqZAp">
-                            <node concept="1PaTwC" id="2Z5Bs_jx2Fh" role="3ndbpf">
-                              <node concept="3oM_SD" id="2Z5Bs_jx2Fj" role="1PaTwD">
-                                <property role="3oM_SC" value="initial" />
-                              </node>
-                              <node concept="3oM_SD" id="2Z5Bs_jx34a" role="1PaTwD">
-                                <property role="3oM_SC" value="type" />
-                              </node>
-                              <node concept="3oM_SD" id="2Z5Bs_jx38c" role="1PaTwD">
-                                <property role="3oM_SC" value="variable" />
-                              </node>
-                              <node concept="3oM_SD" id="2Z5Bs_jx2L8" role="1PaTwD">
-                                <property role="3oM_SC" value="substitution" />
-                              </node>
-                            </node>
-                          </node>
-                          <node concept="3cpWs8" id="2Z5Bs_jwk9S" role="3cqZAp">
-                            <node concept="3cpWsn" id="2Z5Bs_jwk9T" role="3cpWs9">
-                              <property role="TrG5h" value="initialSubs" />
-                              <node concept="3uibUv" id="2Z5Bs_jwk9U" role="1tU5fm">
+            <node concept="3xSepi" id="6_5E9TNz4Xp" role="3xSepv">
+              <node concept="3Aq9E8" id="6_5E9TNz4Xq" role="3xSepj">
+                <node concept="3I6sU6" id="6_5E9TNz4Xr" role="3Ip0Jz">
+                  <node concept="3IrJb3" id="6_5E9TNz4Xs" role="3I6sU7">
+                    <node concept="3clFbS" id="6_5E9TNz4Xt" role="3IrJb0">
+                      <node concept="3Hbl2A" id="6_5E9TNz4Xu" role="3cqZAp">
+                        <node concept="3clFbS" id="6_5E9TNz4Xv" role="9aQI4">
+                          <node concept="3cpWs8" id="6_5E9TNz4XA" role="3cqZAp">
+                            <node concept="3cpWsn" id="6_5E9TNz4XB" role="3cpWs9">
+                              <property role="TrG5h" value="subs" />
+                              <node concept="3uibUv" id="6_5E9TNz4XC" role="1tU5fm">
                                 <ref role="3uigEE" node="6EY0p2w8VOq" resolve="TypeVarSubstitution" />
                               </node>
-                              <node concept="2ShNRf" id="2Z5Bs_jwk9V" role="33vP2m">
-                                <node concept="1pGfFk" id="2Z5Bs_jwk9W" role="2ShVmc">
+                              <node concept="2ShNRf" id="6_5E9TNz4XD" role="33vP2m">
+                                <node concept="1pGfFk" id="6_5E9TNz4XE" role="2ShVmc">
                                   <ref role="37wK5l" node="6EY0p2wsoT6" resolve="TypeVarSubstitution" />
-                                  <node concept="37vLTw" id="2Z5Bs_jwtrm" role="37wK5m">
-                                    <ref role="3cqZAo" node="2Z5Bs_jwnHQ" resolve="tvds" />
+                                  <node concept="37vLTw" id="6_5E9TNz4XF" role="37wK5m">
+                                    <ref role="3cqZAo" node="6_5E9TNz4WM" resolve="tvds" />
                                   </node>
                                 </node>
                               </node>
                             </node>
                           </node>
-                          <node concept="1Dw8fO" id="2Z5Bs_jwlDE" role="3cqZAp">
-                            <node concept="3clFbS" id="2Z5Bs_jwlDF" role="2LFqv$">
-                              <node concept="3clFbF" id="2Z5Bs_jwlDG" role="3cqZAp">
-                                <node concept="2OqwBi" id="2Z5Bs_jwlDH" role="3clFbG">
-                                  <node concept="37vLTw" id="2Z5Bs_jwlDI" role="2Oq$k0">
-                                    <ref role="3cqZAo" node="2Z5Bs_jwk9T" resolve="initialSubs" />
+                          <node concept="1Dw8fO" id="6_5E9TNz4XG" role="3cqZAp">
+                            <node concept="3clFbS" id="6_5E9TNz4XH" role="2LFqv$">
+                              <node concept="3clFbF" id="6_5E9TNz4XI" role="3cqZAp">
+                                <node concept="2OqwBi" id="6_5E9TNz4XJ" role="3clFbG">
+                                  <node concept="37vLTw" id="6_5E9TNz4XK" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="6_5E9TNz4XB" resolve="subs" />
                                   </node>
-                                  <node concept="liA8E" id="2Z5Bs_jwlDJ" role="2OqNvi">
+                                  <node concept="liA8E" id="6_5E9TNz4XL" role="2OqNvi">
                                     <ref role="37wK5l" node="6EY0p2w8YaM" resolve="substitute" />
-                                    <node concept="1y4W85" id="2Z5Bs_jwlDL" role="37wK5m">
-                                      <node concept="37vLTw" id="2Z5Bs_jwlDM" role="1y58nS">
-                                        <ref role="3cqZAo" node="2Z5Bs_jwlDR" resolve="i" />
+                                    <node concept="1y4W85" id="6_5E9TNz4XM" role="37wK5m">
+                                      <node concept="37vLTw" id="6_5E9TNz4XN" role="1y58nS">
+                                        <ref role="3cqZAo" node="6_5E9TNz4XS" resolve="i" />
                                       </node>
-                                      <node concept="37vLTw" id="2Z5Bs_jwxFJ" role="1y566C">
-                                        <ref role="3cqZAo" node="2Z5Bs_jwnHQ" resolve="tvds" />
+                                      <node concept="37vLTw" id="6_5E9TNz4XO" role="1y566C">
+                                        <ref role="3cqZAo" node="6_5E9TNz4WM" resolve="tvds" />
                                       </node>
                                     </node>
-                                    <node concept="3IkZw_" id="hYA4REfKsO" role="37wK5m">
-                                      <node concept="a7P8L" id="2Z5Bs_jwlDQ" role="3Ikct_">
-                                        <ref role="a7OzE" node="2Z5Bs_jwiK$" resolve="TPs" />
-                                        <node concept="37vLTw" id="2Z5Bs_jwwr9" role="3gCZO6">
-                                          <ref role="3cqZAo" node="2Z5Bs_jwlDR" resolve="i" />
+                                    <node concept="3IkZw_" id="6_5E9TNz4XP" role="37wK5m">
+                                      <node concept="a7P8L" id="6_5E9TNz4XQ" role="3Ikct_">
+                                        <ref role="a7OzE" node="6_5E9TNz4Xk" resolve="TPs" />
+                                        <node concept="37vLTw" id="6_5E9TNz4XR" role="3gCZO6">
+                                          <ref role="3cqZAo" node="6_5E9TNz4XS" resolve="i" />
                                         </node>
                                       </node>
                                     </node>
@@ -3494,480 +3185,283 @@
                                 </node>
                               </node>
                             </node>
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-                                            <ref role="3cqZAo" node="2Z5Bs_jvQnl" resolve="nextTvds" />
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-                                        </node>
-                                      </node>
-                                    </node>
-                                  </node>
-                                  <node concept="3X$Joe" id="2Z5Bs_jwTk2" role="3cqZAp">
-                                    <node concept="aZer4" id="2Z5Bs_jwTk3" role="3XD1gS">
-                                      <property role="TrG5h" value="Params" />
-                                      <node concept="2OqwBi" id="2Z5Bs_jwTk4" role="3gj$pD">
-                                        <node concept="34oBXx" id="2Z5Bs_jwTk5" role="2OqNvi" />
-                                        <node concept="37vLTw" id="2Z5Bs_jwUhu" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="2Z5Bs_jvQnl" resolve="nextTvds" />
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-                                      </node>
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-                                          <node concept="37vLTw" id="24yJnOJvfFk" role="2Oq$k0">
-                                            <ref role="3cqZAo" node="24yJnOJpQuO" resolve="subs" />
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-                                          <node concept="liA8E" id="2Z5Bs_jw80P" role="2OqNvi">
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-                                              <node concept="37vLTw" id="2Z5Bs_jw8aG" role="1y566C">
-                                                <ref role="3cqZAo" node="2Z5Bs_jvQnl" resolve="nextTvds" />
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-                                            <node concept="3IkZw_" id="hYA4REfKsP" role="37wK5m">
-                                              <node concept="a7P8L" id="2Z5Bs_jx0qb" role="3Ikct_">
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-                                                  <ref role="3cqZAo" node="2Z5Bs_jw4HV" resolve="isub" />
-                                                </node>
-                                              </node>
-                                            </node>
-                                          </node>
-                                        </node>
-                                      </node>
-                                    </node>
-                                    <node concept="3cpWsn" id="2Z5Bs_jw4HV" role="1Duv9x">
-                                      <property role="TrG5h" value="isub" />
-                                      <node concept="10Oyi0" id="2Z5Bs_jw4MB" role="1tU5fm" />
-                                      <node concept="3cmrfG" id="2Z5Bs_jw4QF" role="33vP2m">
-                                        <property role="3cmrfH" value="0" />
-                                      </node>
-                                    </node>
-                                    <node concept="3eOVzh" id="2Z5Bs_jw5Jk" role="1Dwp0S">
-                                      <node concept="2OqwBi" id="2Z5Bs_jw6gA" role="3uHU7w">
-                                        <node concept="37vLTw" id="2Z5Bs_jw5Ne" role="2Oq$k0">
-                                          <ref role="3cqZAo" node="2Z5Bs_jvQnl" resolve="nextTvds" />
-                                        </node>
-                                        <node concept="34oBXx" id="2Z5Bs_jw6qC" role="2OqNvi" />
-                                      </node>
-                                      <node concept="37vLTw" id="2Z5Bs_jw4UB" role="3uHU7B">
-                                        <ref role="3cqZAo" node="2Z5Bs_jw4HV" resolve="isub" />
-                                      </node>
-                                    </node>
-                                    <node concept="3uNrnE" id="2Z5Bs_jw7r$" role="1Dwrff">
-                                      <node concept="37vLTw" id="2Z5Bs_jw7rA" role="2$L3a6">
-                                        <ref role="3cqZAo" node="2Z5Bs_jw4HV" resolve="isub" />
-                                      </node>
-                                    </node>
-                                  </node>
-                                  <node concept="3clFbH" id="2Z5Bs_jvLfU" role="3cqZAp" />
-                                  <node concept="1$59iH" id="2Z5Bs_jwS29" role="3cqZAp">
+                                  <node concept="3clFbH" id="6_5E9TNzih3" role="3cqZAp" />
+                                  <node concept="1$59iH" id="6_5E9TNz4ZW" role="3cqZAp">
                                     <ref role="1$58ik" node="6hqFpWmN1Sp" resolve="substitution" />
-                                    <node concept="37vLTw" id="24yJnOJtn2$" role="1$59jn">
-                                      <ref role="3cqZAo" node="24yJnOJpQuO" resolve="subs" />
+                                    <node concept="37vLTw" id="6_5E9TNzecN" role="1$59jn">
+                                      <ref role="3cqZAo" node="6_5E9TNz4XB" resolve="subs" />
                                     </node>
-                                    <node concept="3clFbS" id="2Z5Bs_jwS2d" role="1$59iG">
-                                      <node concept="3Aqczg" id="2Z5Bs_jvIiy" role="3cqZAp">
-                                        <node concept="1imXTs" id="2Z5Bs_jvIiz" role="3Aqpz8">
-                                          <node concept="a7P8L" id="2Z5Bs_jvIi$" role="1imXu6">
-                                            <ref role="a7OzE" node="2Z5Bs_jvIim" resolve="Clss" />
-                                            <node concept="37vLTw" id="2Z5Bs_jvIi_" role="3gCZO6">
-                                              <ref role="3cqZAo" node="2Z5Bs_jvIiB" resolve="k" />
+                                    <node concept="3clFbS" id="6_5E9TNz4ZY" role="1$59iG">
+                                      <node concept="3Aqczg" id="6_5E9TNz4ZZ" role="3cqZAp">
+                                        <node concept="1imXTs" id="6_5E9TNz500" role="3Aqpz8">
+                                          <node concept="a7P8L" id="6_5E9TNz501" role="1imXu6">
+                                            <ref role="a7OzE" node="6_5E9TNz4Yt" resolve="Clss" />
+                                            <node concept="37vLTw" id="6_5E9TNz502" role="3gCZO6">
+                                              <ref role="3cqZAo" node="6_5E9TNz50h" resolve="k" />
                                             </node>
                                           </node>
-                                          <node concept="37vLTw" id="2Z5Bs_jvIiA" role="1imXSf">
-                                            <ref role="3cqZAo" node="2Z5Bs_jvIit" resolve="supertype" />
-                                          </node>
-                                        </node>
-                                      </node>
-                                      <node concept="3SKdUt" id="4cyIOXueOjT" role="3cqZAp">
-                                        <node concept="1PaTwC" id="4cyIOXueOjU" role="3ndbpf">
-                                          <node concept="3oM_SD" id="4cyIOXueOjW" role="1PaTwD">
-                                            <property role="3oM_SC" value="perform" />
-                                          </node>
-                                          <node concept="3oM_SD" id="4cyIOXueOo2" role="1PaTwD">
-                                            <property role="3oM_SC" value="substitution" />
-                                          </node>
-                                        </node>
-                                      </node>
-                                      <node concept="3Aqczg" id="4cyIOXueNwp" role="3cqZAp">
-                                        <node concept="3A8Hvi" id="4cyIOXueNwj" role="3Aqpz8">
-                                          <node concept="a7P8L" id="4cyIOXueN$m" role="3A8wtg">
-                                            <ref role="a7OzE" node="2Z5Bs_jvIim" resolve="Clss" />
-                                            <node concept="37vLTw" id="4cyIOXueNCH" role="3gCZO6">
-                                              <ref role="3cqZAo" node="2Z5Bs_jvIiB" resolve="k" />
-                                            </node>
-                                          </node>
-                                          <node concept="ns1u0" id="4cyIOXueNOB" role="3A8w4Q">
-                                            <ref role="ns1xF" node="JOGAOsVt2a" resolve="classifier" />
-                                            <node concept="nsMwS" id="4cyIOXueNSs" role="ns1xD">
-                                              <ref role="nsMwP" node="JOGAOsVt2e" resolve="parameter" />
-                                              <node concept="1nq8_$" id="4cyIOXueO3V" role="nsMwV">
-                                                <node concept="a7P8L" id="4cyIOXueO3T" role="1nq8_t">
-                                                  <ref role="a7OzE" node="2Z5Bs_jwTk3" resolve="Params" />
-                                                </node>
-                                              </node>
-                                            </node>
+                                          <node concept="37vLTw" id="6_5E9TNz503" role="1imXSf">
+                                            <ref role="3cqZAo" node="6_5E9TNz4Z3" resolve="supertype" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="3clFbH" id="2Z5Bs_jvVYi" role="3cqZAp" />
                                 </node>
-                                <node concept="3cpWsn" id="2Z5Bs_jvIiB" role="1Duv9x">
+                                <node concept="3cpWsn" id="6_5E9TNz50h" role="1Duv9x">
                                   <property role="TrG5h" value="k" />
-                                  <node concept="10Oyi0" id="2Z5Bs_jvIiC" role="1tU5fm" />
-                                  <node concept="3cpWsd" id="24yJnOJx2oo" role="33vP2m">
-                                    <node concept="3cmrfG" id="24yJnOJx2oC" role="3uHU7w">
+                                  <node concept="10Oyi0" id="6_5E9TNz50i" role="1tU5fm" />
+                                  <node concept="3cpWsd" id="6_5E9TNz50j" role="33vP2m">
+                                    <node concept="3cmrfG" id="6_5E9TNz50k" role="3uHU7w">
                                       <property role="3cmrfH" value="1" />
                                     </node>
-                                    <node concept="37vLTw" id="24yJnOJz0Vi" role="3uHU7B">
-                                      <ref role="3cqZAo" node="24yJnOJyVVf" resolve="originClsIdx" />
+                                    <node concept="37vLTw" id="6_5E9TNz50l" role="3uHU7B">
+                                      <ref role="3cqZAo" node="6_5E9TNz4YT" resolve="originClsIdx" />
                                     </node>
                                   </node>
                                 </node>
-                                <node concept="2d3UOw" id="24yJnOJve3t" role="1Dwp0S">
-                                  <node concept="37vLTw" id="2Z5Bs_jvIiI" role="3uHU7B">
-                                    <ref role="3cqZAo" node="2Z5Bs_jvIiB" resolve="k" />
+                                <node concept="2d3UOw" id="6_5E9TNz50m" role="1Dwp0S">
+                                  <node concept="37vLTw" id="6_5E9TNz50n" role="3uHU7B">
+                                    <ref role="3cqZAo" node="6_5E9TNz50h" resolve="k" />
                                   </node>
-                                  <node concept="3cmrfG" id="24yJnOJvfEZ" role="3uHU7w">
+                                  <node concept="3cmrfG" id="6_5E9TNz50o" role="3uHU7w">
                                     <property role="3cmrfH" value="0" />
                                   </node>
                                 </node>
-                                <node concept="3uO5VW" id="24yJnOJveXK" role="1Dwrff">
-                                  <node concept="37vLTw" id="24yJnOJveXM" role="2$L3a6">
-                                    <ref role="3cqZAo" node="2Z5Bs_jvIiB" resolve="k" />
+                                <node concept="3uO5VW" id="6_5E9TNz50p" role="1Dwrff">
+                                  <node concept="37vLTw" id="6_5E9TNz50q" role="2$L3a6">
+                                    <ref role="3cqZAo" node="6_5E9TNz50h" resolve="k" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="3Aqczg" id="24yJnOJyOA$" role="3cqZAp">
-                                <node concept="3A8Hvi" id="24yJnOJyOAu" role="3Aqpz8">
-                                  <node concept="a7P8L" id="24yJnOJyOEs" role="3A8wtg">
-                                    <ref role="a7OzE" node="2Z5Bs_jvIim" resolve="Clss" />
-                                    <node concept="37vLTw" id="24yJnOJz1ao" role="3gCZO6">
-                                      <ref role="3cqZAo" node="24yJnOJyVVf" resolve="originClsIdx" />
+                              <node concept="3clFbH" id="6_5E9TNzibv" role="3cqZAp" />
+                              <node concept="3Aqczg" id="6_5E9TNz50r" role="3cqZAp">
+                                <node concept="3A8Hvi" id="6_5E9TNz50s" role="3Aqpz8">
+                                  <node concept="a7P8L" id="6_5E9TNz50t" role="3A8wtg">
+                                    <ref role="a7OzE" node="6_5E9TNz4Yt" resolve="Clss" />
+                                    <node concept="37vLTw" id="6_5E9TNz50u" role="3gCZO6">
+                                      <ref role="3cqZAo" node="6_5E9TNz4YT" resolve="originClsIdx" />
                                     </node>
                                   </node>
-                                  <node concept="a7P8L" id="24yJnOJz1aX" role="3A8w4Q">
-                                    <ref role="a7OzE" node="2Z5Bs_jvIhQ" resolve="ClsType" />
+                                  <node concept="a7P8L" id="6_5E9TNz50v" role="3A8w4Q">
+                                    <ref role="a7OzE" node="6_5E9TNz4Xb" resolve="ClsType" />
                                   </node>
                                 </node>
                               </node>
-                              <node concept="3Aqczg" id="39Sam6YZfrh" role="3cqZAp">
-                                <node concept="3A8Hvi" id="39Sam6YZfri" role="3Aqpz8">
-                                  <node concept="Hz6ka" id="39Sam6YZfrj" role="3A8w4Q">
-                                    <node concept="KCUsM" id="3zXFZnUhvaG" role="Hz6kd">
-                                      <node concept="22Ky0T" id="3zXFZnUhvex" role="lGtFl">
-                                        <node concept="1nq8_$" id="3zXFZnUhvtK" role="22Ky0K">
-                                          <node concept="a7P8L" id="3zXFZnUhvtJ" role="1nq8_t">
-                                            <ref role="a7OzE" node="2Z5Bs_jvIim" resolve="Clss" />
+                              <node concept="3Aqczg" id="6_5E9TNz50w" role="3cqZAp">
+                                <node concept="3A8Hvi" id="6_5E9TNz50x" role="3Aqpz8">
+                                  <node concept="Hz6ka" id="6_5E9TNz50y" role="3A8w4Q">
+                                    <node concept="KCUsM" id="6_5E9TNz50z" role="Hz6kd">
+                                      <node concept="22Ky0T" id="6_5E9TNz50$" role="lGtFl">
+                                        <node concept="1nq8_$" id="6_5E9TNz50_" role="22Ky0K">
+                                          <node concept="a7P8L" id="6_5E9TNz50A" role="1nq8_t">
+                                            <ref role="a7OzE" node="6_5E9TNz4Yt" resolve="Clss" />
                                           </node>
                                         </node>
                                       </node>
                                     </node>
                                   </node>
-                                  <node concept="a7P8L" id="39Sam6YZfKA" role="3A8wtg">
-                                    <ref role="a7OzE" node="2Z5Bs_jvIhS" resolve="Paths" />
-                                    <node concept="37vLTw" id="39Sam6YZfQU" role="3gCZO6">
-                                      <ref role="3cqZAo" node="2Z5Bs_jvIiV" resolve="i" />
+                                  <node concept="a7P8L" id="6_5E9TNz50B" role="3A8wtg">
+                                    <ref role="a7OzE" node="6_5E9TNz4Xe" resolve="Paths" />
+                                    <node concept="37vLTw" id="6_5E9TNz50C" role="3gCZO6">
+                                      <ref role="3cqZAo" node="6_5E9TNz50D" resolve="i" />
                                     </node>
                                   </node>
                                 </node>
                               </node>
                             </node>
-                            <node concept="3cpWsn" id="2Z5Bs_jvIiV" role="1Duv9x">
+                            <node concept="3cpWsn" id="6_5E9TNz50D" role="1Duv9x">
                               <property role="TrG5h" value="i" />
-                              <node concept="10Oyi0" id="2Z5Bs_jvIiW" role="1tU5fm" />
-                              <node concept="3cmrfG" id="2Z5Bs_jvIiX" role="33vP2m">
+                              <node concept="10Oyi0" id="6_5E9TNz50E" role="1tU5fm" />
+                              <node concept="3cmrfG" id="6_5E9TNz50F" role="33vP2m">
                                 <property role="3cmrfH" value="0" />
                               </node>
                             </node>
-                            <node concept="3eOVzh" id="2Z5Bs_jvIiY" role="1Dwp0S">
-                              <node concept="2OqwBi" id="2Z5Bs_jvIiZ" role="3uHU7w">
-                                <node concept="37vLTw" id="2Z5Bs_jvIj0" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2Z5Bs_jvIhn" resolve="subtypePaths" />
+                            <node concept="3eOVzh" id="6_5E9TNz50G" role="1Dwp0S">
+                              <node concept="2OqwBi" id="6_5E9TNz50H" role="3uHU7w">
+                                <node concept="37vLTw" id="6_5E9TNz50I" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="6_5E9TNz4Wn" resolve="subtypePaths" />
                                 </node>
-                                <node concept="34oBXx" id="2Z5Bs_jvIj1" role="2OqNvi" />
+                                <node concept="34oBXx" id="6_5E9TNz50J" role="2OqNvi" />
                               </node>
-                              <node concept="37vLTw" id="2Z5Bs_jvIj2" role="3uHU7B">
-                                <ref role="3cqZAo" node="2Z5Bs_jvIiV" resolve="i" />
+                              <node concept="37vLTw" id="6_5E9TNz50K" role="3uHU7B">
+                                <ref role="3cqZAo" node="6_5E9TNz50D" resolve="i" />
                               </node>
                             </node>
-                            <node concept="3uNrnE" id="2Z5Bs_jvIj3" role="1Dwrff">
-                              <node concept="37vLTw" id="2Z5Bs_jvIj4" role="2$L3a6">
-                                <ref role="3cqZAo" node="2Z5Bs_jvIiV" resolve="i" />
+                            <node concept="3uNrnE" id="6_5E9TNz50L" role="1Dwrff">
+                              <node concept="37vLTw" id="6_5E9TNz50M" role="2$L3a6">
+                                <ref role="3cqZAo" node="6_5E9TNz50D" resolve="i" />
                               </node>
                             </node>
                           </node>
-                          <node concept="3Aqczg" id="2Z5Bs_jvIj5" role="3cqZAp">
-                            <node concept="3A8Hvi" id="2Z5Bs_jvIj6" role="3Aqpz8">
-                              <node concept="Hz6ka" id="2Z5Bs_jvIj7" role="3A8w4Q">
-                                <node concept="KCUsM" id="3zXFZnUhvHf" role="Hz6kd">
-                                  <node concept="22Ky0T" id="3zXFZnUhvL4" role="lGtFl">
-                                    <node concept="1nq8_$" id="3zXFZnUhvOU" role="22Ky0K">
-                                      <node concept="a7P8L" id="3zXFZnUhvOT" role="1nq8_t">
-                                        <ref role="a7OzE" node="2Z5Bs_jvIhS" resolve="Paths" />
+                          <node concept="3Aqczg" id="6_5E9TNz50N" role="3cqZAp">
+                            <node concept="3A8Hvi" id="6_5E9TNz50O" role="3Aqpz8">
+                              <node concept="Hz6ka" id="6_5E9TNz50P" role="3A8w4Q">
+                                <node concept="KCUsM" id="6_5E9TNz50Q" role="Hz6kd">
+                                  <node concept="22Ky0T" id="6_5E9TNz50R" role="lGtFl">
+                                    <node concept="1nq8_$" id="6_5E9TNz50S" role="22Ky0K">
+                                      <node concept="a7P8L" id="6_5E9TNz50T" role="1nq8_t">
+                                        <ref role="a7OzE" node="6_5E9TNz4Xe" resolve="Paths" />
                                       </node>
                                     </node>
                                   </node>
                                 </node>
                               </node>
-                              <node concept="a7P8L" id="2Z5Bs_jvIjd" role="3A8wtg">
-                                <ref role="a7OzE" node="2Z5Bs_jvIhP" resolve="Res" />
+                              <node concept="a7P8L" id="6_5E9TNz50U" role="3A8wtg">
+                                <ref role="a7OzE" node="6_5E9TNz4Xa" resolve="Res" />
                               </node>
                             </node>
                           </node>
@@ -3981,9 +3475,9 @@
           </node>
         </node>
       </node>
-      <node concept="2t___k" id="2Z5Bs_jvIje" role="1nLNMg">
+      <node concept="2t___k" id="6_5E9TNz50V" role="1nLNMg">
         <ref role="2t_S0q" to="tpee:g7pOWCK" resolve="Classifier" />
-        <node concept="3A20r5" id="2Z5Bs_jvIjf" role="2t_VXX">
+        <node concept="3A20r5" id="6_5E9TNz50W" role="2t_VXX">
           <property role="TrG5h" value="cls" />
         </node>
       </node>
diff --git a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.types@tests.mps b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.types@tests.mps
index 239d9583..eb56c6ba 100644
--- a/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.types@tests.mps
+++ b/samples/mpscore/solutions/jetbrains.mps.baseLanguageExt.test/models/jetbrains.mps.baseLanguageExt.test.types@tests.mps
@@ -117,6 +117,13 @@
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
         <child id="1068431790190" name="initializer" index="33vP2m" />
       </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="1068498886296" name="jetbrains.mps.baseLanguage.structure.VariableReference" flags="nn" index="37vLTw">
         <reference id="1068581517664" name="variableDeclaration" index="3cqZAo" />
       </concept>
@@ -260,6 +267,9 @@
       <concept id="1171981022339" name="jetbrains.mps.baseLanguage.unitTest.structure.AssertTrue" flags="nn" index="3vwNmj">
         <child id="1171981057159" name="condition" index="3vwVQn" />
       </concept>
+      <concept id="1171983834376" name="jetbrains.mps.baseLanguage.unitTest.structure.AssertFalse" flags="nn" index="3vFxKo">
+        <child id="1171983854940" name="condition" index="3vFALc" />
+      </concept>
       <concept id="1172073500303" name="jetbrains.mps.baseLanguage.unitTest.structure.Message" flags="ng" index="3_1$Yv">
         <child id="1172073511101" name="message" index="3_1BAH" />
       </concept>
@@ -916,6 +926,126 @@
         </node>
       </node>
     </node>
+    <node concept="1LZb2c" id="6_5E9TNxAdQ" role="1SL9yI">
+      <property role="TrG5h" value="subclassing_typeargs_C" />
+      <node concept="3cqZAl" id="6_5E9TNxAdR" role="3clF45" />
+      <node concept="3clFbS" id="6_5E9TNxAdS" role="3clF47">
+        <node concept="3cpWs8" id="6_5E9TNxAdT" role="3cqZAp">
+          <node concept="3cpWsn" id="6_5E9TNxAdU" role="3cpWs9">
+            <property role="TrG5h" value="expected" />
+            <node concept="_YKpA" id="6_5E9TNxAdV" role="1tU5fm">
+              <node concept="_YKpA" id="6_5E9TNxAdW" role="_ZDj9">
+                <node concept="3Tqbb2" id="6_5E9TNxAdX" role="_ZDj9" />
+              </node>
+            </node>
+            <node concept="2OqwBi" id="6_5E9TNxAdY" role="33vP2m">
+              <node concept="2OqwBi" id="6_5E9TNxAdZ" role="2Oq$k0">
+                <node concept="2OqwBi" id="6_5E9TNxAe0" role="2Oq$k0">
+                  <node concept="3xONca" id="6_5E9TNxLXI" role="2Oq$k0">
+                    <ref role="3xOPvv" node="6_5E9TNxIYs" resolve="expected_C_targs" />
+                  </node>
+                  <node concept="3Tsc0h" id="6_5E9TNxAe2" role="2OqNvi">
+                    <ref role="3TtcxE" to="tp68:hHp56YpiWP" resolve="actualArgument" />
+                  </node>
+                </node>
+                <node concept="3$u5V9" id="6_5E9TNxAe3" role="2OqNvi">
+                  <node concept="1bVj0M" id="6_5E9TNxAe4" role="23t8la">
+                    <node concept="3clFbS" id="6_5E9TNxAe5" role="1bW5cS">
+                      <node concept="3clFbF" id="6_5E9TNxAe6" role="3cqZAp">
+                        <node concept="2OqwBi" id="6_5E9TNxAe7" role="3clFbG">
+                          <node concept="1PxgMI" id="6_5E9TNxAe8" role="2Oq$k0">
+                            <node concept="37vLTw" id="6_5E9TNxAe9" role="1m5AlR">
+                              <ref role="3cqZAo" node="6_5E9TNxAec" resolve="it" />
+                            </node>
+                            <node concept="chp4Y" id="6_5E9TNxAea" role="3oSUPX">
+                              <ref role="cht4Q" to="tp68:h5nCRdH" resolve="InternalNewExpression" />
+                            </node>
+                          </node>
+                          <node concept="3Tsc0h" id="6_5E9TNxAeb" role="2OqNvi">
+                            <ref role="3TtcxE" to="tp68:i3HumyW" resolve="parameter" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="Rh6nW" id="6_5E9TNxAec" role="1bW2Oz">
+                      <property role="TrG5h" value="it" />
+                      <node concept="2jxLKc" id="6_5E9TNxAed" role="1tU5fm" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="ANE8D" id="6_5E9TNxAee" role="2OqNvi" />
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="6_5E9TNxAef" role="3cqZAp">
+          <node concept="3cpWsn" id="6_5E9TNxAeg" role="3cpWs9">
+            <property role="TrG5h" value="foundInst" />
+            <node concept="_YKpA" id="6_5E9TNxAeh" role="1tU5fm">
+              <node concept="_YKpA" id="6_5E9TNxAei" role="_ZDj9">
+                <node concept="3Tqbb2" id="6_5E9TNxAej" role="_ZDj9">
+                  <ref role="ehGHo" to="tpee:g7uibYu" resolve="ClassifierType" />
+                </node>
+              </node>
+            </node>
+            <node concept="2YIFZM" id="6_5E9TNysOP" role="33vP2m">
+              <ref role="37wK5l" to="kqnc:3jyhf9JmEv6" resolve="allInstSubtypePathsTo" />
+              <ref role="1Pybhc" to="kqnc:tIwzd2cJHD" resolve="SubclassingUtil" />
+              <node concept="3xONca" id="6_5E9TNysOQ" role="37wK5m">
+                <ref role="3xOPvv" node="6_5E9TNxy_K" resolve="gC" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3vwNmj" id="6_5E9TNxAem" role="3cqZAp">
+          <node concept="2OqwBi" id="6_5E9TNxAen" role="3vwVQn">
+            <node concept="2WthIp" id="6_5E9TNxAeo" role="2Oq$k0" />
+            <node concept="2XshWL" id="6_5E9TNxAep" role="2OqNvi">
+              <ref role="2WH_rO" node="7t5VLKGS9tZ" resolve="same" />
+              <node concept="37vLTw" id="6_5E9TNxAeq" role="2XxRq1">
+                <ref role="3cqZAo" node="6_5E9TNxAdU" resolve="expected" />
+              </node>
+              <node concept="37vLTw" id="6_5E9TNxAer" role="2XxRq1">
+                <ref role="3cqZAo" node="6_5E9TNxAeg" resolve="foundInst" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="6_5E9TNysjz" role="3cqZAp">
+          <node concept="3cpWsn" id="6_5E9TNysj$" role="3cpWs9">
+            <property role="TrG5h" value="foundSimple" />
+            <node concept="_YKpA" id="6_5E9TNysj_" role="1tU5fm">
+              <node concept="_YKpA" id="6_5E9TNysjA" role="_ZDj9">
+                <node concept="3Tqbb2" id="6_5E9TNysjB" role="_ZDj9">
+                  <ref role="ehGHo" to="tpee:g7uibYu" resolve="ClassifierType" />
+                </node>
+              </node>
+            </node>
+            <node concept="2YIFZM" id="6_5E9TNysjC" role="33vP2m">
+              <ref role="37wK5l" to="kqnc:5H6hZahiCgu" resolve="allSubtypePathsTo" />
+              <ref role="1Pybhc" to="kqnc:tIwzd2cJHD" resolve="SubclassingUtil" />
+              <node concept="3xONca" id="6_5E9TNysjD" role="37wK5m">
+                <ref role="3xOPvv" node="6_5E9TNxy_K" resolve="gC" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3vFxKo" id="6_5E9TNys0F" role="3cqZAp">
+          <node concept="2OqwBi" id="6_5E9TNyr4u" role="3vFALc">
+            <node concept="2WthIp" id="6_5E9TNyr4v" role="2Oq$k0" />
+            <node concept="2XshWL" id="6_5E9TNyr4w" role="2OqNvi">
+              <ref role="2WH_rO" node="7t5VLKGS9tZ" resolve="same" />
+              <node concept="37vLTw" id="6_5E9TNyr4x" role="2XxRq1">
+                <ref role="3cqZAo" node="6_5E9TNxAdU" resolve="expected" />
+              </node>
+              <node concept="37vLTw" id="6_5E9TNysUr" role="2XxRq1">
+                <ref role="3cqZAo" node="6_5E9TNysj$" resolve="foundSimple" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
     <node concept="1qefOq" id="7t5VLKGAWWi" role="1SKRRt">
       <node concept="312cEu" id="7t5VLKGAXcp" role="1qenE9">
         <property role="2bfB8j" value="true" />
@@ -996,6 +1126,213 @@
         <node concept="3Tm1VV" id="7t5VLKGAXcq" role="1B3o_S" />
       </node>
     </node>
+    <node concept="1qefOq" id="6_5E9TNxy2i" role="1SKRRt">
+      <node concept="312cEu" id="6_5E9TNxy_n" role="1qenE9">
+        <property role="2bfB8j" value="true" />
+        <property role="TrG5h" value="GContainer" />
+        <node concept="2tJIrI" id="6_5E9TNxy_o" role="jymVt" />
+        <node concept="312cEu" id="6_5E9TNxzIu" role="jymVt">
+          <property role="TrG5h" value="P" />
+          <node concept="3Tm1VV" id="6_5E9TNxzE_" role="1B3o_S" />
+          <node concept="16euLQ" id="6_5E9TNxzMb" role="16eVyc">
+            <property role="TrG5h" value="X" />
+          </node>
+          <node concept="16euLQ" id="6_5E9TNxzNM" role="16eVyc">
+            <property role="TrG5h" value="Y" />
+          </node>
+        </node>
+        <node concept="312cEu" id="6_5E9TNxy_p" role="jymVt">
+          <property role="2bfB8j" value="false" />
+          <property role="TrG5h" value="A" />
+          <node concept="3Tm1VV" id="6_5E9TNxy_q" role="1B3o_S" />
+          <node concept="3xLA65" id="6_5E9TNxy_r" role="lGtFl">
+            <property role="TrG5h" value="gA" />
+          </node>
+          <node concept="16euLQ" id="6_5E9TNxyG3" role="16eVyc">
+            <property role="TrG5h" value="Ta" />
+          </node>
+        </node>
+        <node concept="2tJIrI" id="6_5E9TNxy_s" role="jymVt" />
+        <node concept="312cEu" id="6_5E9TNxy_t" role="jymVt">
+          <property role="2bfB8j" value="false" />
+          <property role="TrG5h" value="B" />
+          <node concept="3Tm1VV" id="6_5E9TNxy_u" role="1B3o_S" />
+          <node concept="3xLA65" id="6_5E9TNxy_v" role="lGtFl">
+            <property role="TrG5h" value="gB" />
+          </node>
+          <node concept="3uibUv" id="6_5E9TNxy_w" role="1zkMxy">
+            <ref role="3uigEE" node="6_5E9TNxy_p" resolve="GContainer.A" />
+            <node concept="3uibUv" id="6_5E9TNxzP$" role="11_B2D">
+              <ref role="3uigEE" node="6_5E9TNxzIu" resolve="GContainer.P" />
+              <node concept="16syzq" id="6_5E9TNxzS8" role="11_B2D">
+                <ref role="16sUi3" node="6_5E9TNxyJX" resolve="Tb" />
+              </node>
+              <node concept="16syzq" id="6_5E9TNxzUO" role="11_B2D">
+                <ref role="16sUi3" node="6_5E9TNxzx8" resolve="Sb" />
+              </node>
+            </node>
+          </node>
+          <node concept="16euLQ" id="6_5E9TNxyJX" role="16eVyc">
+            <property role="TrG5h" value="Tb" />
+          </node>
+          <node concept="16euLQ" id="6_5E9TNxzx8" role="16eVyc">
+            <property role="TrG5h" value="Sb" />
+          </node>
+        </node>
+        <node concept="2tJIrI" id="6_5E9TNxy_C" role="jymVt" />
+        <node concept="3HP615" id="6_5E9TNxL1y" role="jymVt">
+          <property role="2bfB8j" value="true" />
+          <property role="TrG5h" value="I" />
+          <node concept="3Tm1VV" id="6_5E9TNxL1z" role="1B3o_S" />
+          <node concept="16euLQ" id="6_5E9TNxLiU" role="16eVyc">
+            <property role="TrG5h" value="Ti" />
+          </node>
+        </node>
+        <node concept="2tJIrI" id="6_5E9TNxL1$" role="jymVt" />
+        <node concept="3HP615" id="6_5E9TNxL1_" role="jymVt">
+          <property role="2bfB8j" value="true" />
+          <property role="TrG5h" value="J" />
+          <node concept="3Tm1VV" id="6_5E9TNxL1A" role="1B3o_S" />
+          <node concept="3uibUv" id="6_5E9TNxL1B" role="3HQHJm">
+            <ref role="3uigEE" node="6_5E9TNxL1y" resolve="GContainer.I" />
+            <node concept="3uibUv" id="6_5E9TNxLet" role="11_B2D">
+              <ref role="3uigEE" to="wyt6:~Comparable" resolve="Comparable" />
+              <node concept="16syzq" id="6_5E9TNxLhj" role="11_B2D">
+                <ref role="16sUi3" node="6_5E9TNxL6u" resolve="Tj" />
+              </node>
+            </node>
+          </node>
+          <node concept="16euLQ" id="6_5E9TNxL6u" role="16eVyc">
+            <property role="TrG5h" value="Tj" />
+          </node>
+        </node>
+        <node concept="2tJIrI" id="6_5E9TNxy_F" role="jymVt" />
+        <node concept="312cEu" id="6_5E9TNxy_G" role="jymVt">
+          <property role="2bfB8j" value="true" />
+          <property role="TrG5h" value="C" />
+          <node concept="2tJIrI" id="6_5E9TNxI_I" role="jymVt" />
+          <node concept="3clFb_" id="6_5E9TNxF9b" role="jymVt">
+            <property role="TrG5h" value="foo" />
+            <node concept="3clFbS" id="6_5E9TNxF9e" role="3clF47">
+              <node concept="3clFbF" id="6_5E9TNxIYb" role="3cqZAp">
+                <node concept="1niqFM" id="6_5E9TNxIYd" role="3clFbG">
+                  <property role="1npL6y" value="expect" />
+                  <property role="1npUBZ" value="_" />
+                  <node concept="1nCR9W" id="6_5E9TNxIYe" role="2U24H$">
+                    <property role="1nD$Q0" value="_" />
+                    <node concept="3uibUv" id="6_5E9TNxIYf" role="3HumAs">
+                      <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+                    </node>
+                    <node concept="3uibUv" id="6_5E9TNxIYg" role="3HumAs">
+                      <ref role="3uigEE" node="6_5E9TNxy_p" resolve="GContainer.A" />
+                      <node concept="3uibUv" id="6_5E9TNxJHI" role="11_B2D">
+                        <ref role="3uigEE" node="6_5E9TNxzIu" resolve="GContainer.P" />
+                        <node concept="16syzq" id="6_5E9TNxJKA" role="11_B2D">
+                          <ref role="16sUi3" node="6_5E9TNxzWI" resolve="Tc" />
+                        </node>
+                        <node concept="3uibUv" id="6_5E9TNxJN5" role="11_B2D">
+                          <ref role="3uigEE" node="6_5E9TNxL1_" resolve="GContainer.J" />
+                          <node concept="16syzq" id="6_5E9TNxJS0" role="11_B2D">
+                            <ref role="16sUi3" node="6_5E9TNxzZF" resolve="Sc" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3uibUv" id="6_5E9TNxIYh" role="3HumAs">
+                      <ref role="3uigEE" node="6_5E9TNxy_t" resolve="GContainer.B" />
+                      <node concept="16syzq" id="6_5E9TNxJvB" role="11_B2D">
+                        <ref role="16sUi3" node="6_5E9TNxzWI" resolve="Tc" />
+                      </node>
+                      <node concept="3uibUv" id="6_5E9TNxJxX" role="11_B2D">
+                        <ref role="3uigEE" node="6_5E9TNxL1_" resolve="GContainer.J" />
+                        <node concept="16syzq" id="6_5E9TNxJA$" role="11_B2D">
+                          <ref role="16sUi3" node="6_5E9TNxzZF" resolve="Sc" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3uibUv" id="6_5E9TNxIYi" role="3HumAs">
+                      <ref role="3uigEE" node="6_5E9TNxy_G" resolve="GContainer.C" />
+                      <node concept="16syzq" id="6_5E9TNxJrm" role="11_B2D">
+                        <ref role="16sUi3" node="6_5E9TNxzWI" resolve="Tc" />
+                      </node>
+                      <node concept="16syzq" id="6_5E9TNxIYk" role="11_B2D">
+                        <ref role="16sUi3" node="6_5E9TNxzZF" resolve="Sc" />
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="1nCR9W" id="6_5E9TNxIYl" role="2U24H$">
+                    <property role="1nD$Q0" value="_" />
+                    <node concept="3uibUv" id="6_5E9TNxIYm" role="3HumAs">
+                      <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+                    </node>
+                    <node concept="3uibUv" id="6_5E9TNxLKd" role="3HumAs">
+                      <ref role="3uigEE" node="6_5E9TNxL1y" resolve="GContainer.I" />
+                      <node concept="3uibUv" id="6_5E9TNxLNt" role="11_B2D">
+                        <ref role="3uigEE" to="wyt6:~Comparable" resolve="Comparable" />
+                        <node concept="3uibUv" id="6_5E9TNxLRb" role="11_B2D">
+                          <ref role="3uigEE" to="wyt6:~Integer" resolve="Integer" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="3uibUv" id="6_5E9TNxIYn" role="3HumAs">
+                      <ref role="3uigEE" node="6_5E9TNxL1_" resolve="GContainer.J" />
+                      <node concept="3uibUv" id="6_5E9TNxIYo" role="11_B2D">
+                        <ref role="3uigEE" to="wyt6:~Integer" resolve="Integer" />
+                      </node>
+                    </node>
+                    <node concept="3uibUv" id="6_5E9TNxIYp" role="3HumAs">
+                      <ref role="3uigEE" node="6_5E9TNxy_G" resolve="GContainer.C" />
+                      <node concept="16syzq" id="6_5E9TNxJmK" role="11_B2D">
+                        <ref role="16sUi3" node="6_5E9TNxzWI" resolve="Tc" />
+                      </node>
+                      <node concept="16syzq" id="6_5E9TNxJp4" role="11_B2D">
+                        <ref role="16sUi3" node="6_5E9TNxzZF" resolve="Sc" />
+                      </node>
+                    </node>
+                  </node>
+                  <node concept="3cqZAl" id="6_5E9TNxIYr" role="32Mpfj" />
+                  <node concept="3xLA65" id="6_5E9TNxIYs" role="lGtFl">
+                    <property role="TrG5h" value="expected_C_targs" />
+                  </node>
+                </node>
+              </node>
+            </node>
+            <node concept="3cqZAl" id="6_5E9TNxF4S" role="3clF45" />
+            <node concept="3Tm1VV" id="6_5E9TNxIlT" role="1B3o_S" />
+          </node>
+          <node concept="3Tm1VV" id="6_5E9TNxy_H" role="1B3o_S" />
+          <node concept="3uibUv" id="6_5E9TNxy_I" role="1zkMxy">
+            <ref role="3uigEE" node="6_5E9TNxy_t" resolve="GContainer.B" />
+            <node concept="16syzq" id="6_5E9TNx$68" role="11_B2D">
+              <ref role="16sUi3" node="6_5E9TNxzWI" resolve="Tc" />
+            </node>
+            <node concept="3uibUv" id="6_5E9TNx$f1" role="11_B2D">
+              <ref role="3uigEE" node="6_5E9TNxL1_" resolve="GContainer.J" />
+              <node concept="16syzq" id="6_5E9TNx$i0" role="11_B2D">
+                <ref role="16sUi3" node="6_5E9TNxzZF" resolve="Sc" />
+              </node>
+            </node>
+          </node>
+          <node concept="3uibUv" id="6_5E9TNxznP" role="EKbjA">
+            <ref role="3uigEE" node="6_5E9TNxL1_" resolve="GContainer.J" />
+            <node concept="3uibUv" id="6_5E9TNxEAY" role="11_B2D">
+              <ref role="3uigEE" to="wyt6:~Integer" resolve="Integer" />
+            </node>
+          </node>
+          <node concept="3xLA65" id="6_5E9TNxy_K" role="lGtFl">
+            <property role="TrG5h" value="gC" />
+          </node>
+          <node concept="16euLQ" id="6_5E9TNxzWI" role="16eVyc">
+            <property role="TrG5h" value="Tc" />
+          </node>
+          <node concept="16euLQ" id="6_5E9TNxzZF" role="16eVyc">
+            <property role="TrG5h" value="Sc" />
+          </node>
+        </node>
+        <node concept="2tJIrI" id="6_5E9TNxy_R" role="jymVt" />
+        <node concept="3Tm1VV" id="6_5E9TNxy_S" role="1B3o_S" />
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