anchor.diff:      for (Source otherSource in otherLibrarySources) {
         _checkSource(resynthesizer, otherSource);
       }
  +    _reset();
       return resynthesized.definingCompilationUnit;
     }
   
  
positive.code:     });
    }
  
    void _serializeLibrary(Source librarySource) {
      if (librarySource.isInSystemLibrary) {
        return;
  
negative.code:   @failingTest
    void test_constructors_inferFromArguments_redirectingFactory() {
      super.test_constructors_inferFromArguments_redirectingFactory();
    }
  
    @override
  