anchor.diff:      getInterceptorMethod = compiler.findInterceptor('getInterceptor');
       interceptedNames = compiler.findInterceptor('interceptedNames');
       mapTypeToInterceptor = compiler.findInterceptor('mapTypeToInterceptor');
  -    dispatchPropertyName = compiler.findInterceptor('dispatchPropertyName');
       getNativeInterceptorMethod =
           compiler.findInterceptor('getNativeInterceptor');
   
  
positive.code:         // TODO(ngeoffray): Move the bound closure class in the
          // backend.
          enqueueClass(enqueuer, compiler.boundClosureClass, elements);
        }
      }
      ClassElement result = null;
  
negative.code:                                  TreeElements elements) {
      if (!cls.typeVariables.isEmpty) {
        typeVariableHandler.registerClassWithTypeVariables(cls);
      }
  
      // Register any helper that will be needed by the backend.
  