anchor.diff:      enqueue(enqueuer, getGetRuntimeTypeInfo(), elements);
       enqueue(enqueuer, getComputeSignature(), elements);
       enqueue(enqueuer, getGetRuntimeTypeArguments(), elements);
  -    enqueuer.registerInstantiatedClass(compiler.listClass, elements);
  +    enqueueClass(enqueuer, compiler.listClass, elements);
     }
   
     void registerRuntimeType(Enqueuer enqueuer, TreeElements elements) {
  
positive.code:   void registerUseInterceptor(Enqueuer enqueuer) {
      assert(!enqueuer.isResolutionQueue);
      if (!enqueuer.nativeEnqueuer.hasInstantiatedNativeClasses()) return;
      enqueuer.registerStaticUse(getNativeInterceptorMethod);
      enqueuer.registerStaticUse(defineNativeMethodsFinishMethod);
      enqueuer.registerStaticUse(initializeDispatchPropertyMethod);
      TreeElements elements = compiler.globalDependencies;
      enqueuer.registerInstantiatedClass(jsPlainJavaScriptObjectClass, elements);
      needToInitializeDispatchProperty = true;
    }
  
  
negative.code:     enqueueInResolution(getSetRuntimeTypeInfo(), elements);
      enqueueInResolution(getGetRuntimeTypeInfo(), elements);
      registerGetRuntimeTypeArgument(elements);
      enqueueClass(enqueuer, compiler.listClass, elements);
    }
  
    void registerTypeVariableExpression(TreeElements elements) {
      enqueueInResolution(getSetRuntimeTypeInfo(), elements);
      enqueueInResolution(getGetRuntimeTypeInfo(), elements);
      registerGetRuntimeTypeArgument(elements);
      enqueueClass(compiler.enqueuer.resolution, compiler.listClass, elements);
      enqueueInResolution(getRuntimeTypeToString(), elements);
      enqueueInResolution(getCreateRuntimeType(), elements);
    }
  
    void registerIsCheck(DartType type, Enqueuer world, TreeElements elements) {
      type = type.unalias(compiler);
      enqueueClass(world, compiler.boolClass, elements);
      bool inCheckedMode = compiler.enableTypeAssertions;
      // [registerIsCheck] is also called for checked mode checks, so we
      // need to register checked mode helpers.
  