anchor.diff:    }
   
     @override
  -  List<UnlinkedTypeParamBuilder> get typeParameters => _typeParameters ??= <UnlinkedTypeParamBuilder>[];
  +  List<UnlinkedTypeParamBuilder> get typeParameters =>
  +      _typeParameters ??= <UnlinkedTypeParamBuilder>[];
   
     /**
      * Type parameters of the class, if any.
  
positive.code: 
    @override
    idl.UnlinkedDocumentationComment get documentationComment {
      _documentationComment ??= const _UnlinkedDocumentationCommentReader().vTableGet(_bc, _bcOffset, 6, null);
      return _documentationComment;
    }
  
  
negative.code:   }
  
    @override
    List<UnlinkedExprBuilder> get libraryAnnotations =>
        _libraryAnnotations ??= <UnlinkedExprBuilder>[];
  
    /**
     * Annotations for the library declaration, or the empty list if there is no
  