anchor.diff:     */
     void onInit() {
       _receivePort = new ReceivePort();
  -    notifyController('unittest-suite-wait-for-done');
  +    _postMessage('unittest-suite-wait-for-done');
     }
   
     /** Called as soon as the unittest framework starts running. */
  
positive.code:    * compact_vm_config), can safely override this method to avoid printing extra
     * mesages in the console.
     */
    void notifyController(String message) {
      // In dart2js browser tests, the JavaScript-based test controller
      // intercepts calls to print and listens for "secret" messages.
      print(message);
  
negative.code:    */
    void onDone(bool success) {
      if (success) {
        _postMessage('unittest-suite-success');
        _receivePort.close();
      } else {
        _receivePort.close();
  