MPS-20995 User's action execute method failed. Action:RebuildProject: NPE for resurrected InterpretedLanguageRuntime which we don't want to return empty make aspect descriptor
MPS-21006 [build:MPS-139.966] java.lang.AssertionError : Can't get identity of concept jetbrains.mps.lang.structure.structure.AggregationConceptLink: Can't get identity of concept jetbrains.mps.lang.structure.structure.AggregationConceptLink:
ease discovery of the faulty model and node e.g. in the case when migration didn't remove old concept
MPS-21013 Runtime of generation target languages are not visible to origin language's generator: add runtime solution for what we generate into.
Language pattern.testLang generates into lang.test and also into lang.test's extended language's (baseLanguage.unitTest) runtime (baseLanguage.unitTest.libs). As it's our generation target, add it as our own runtime fo pattern.testLang as well
MPS-21005 [build:MPS-139.966] NPE on safe delete concept: apparently null concept got down to finder