anchor.diff:        profile.addDataPoint('drawFrameDuration', _drawFrameStopwatch.elapsed, reported: true);
       }
   
  -    if (profile.shouldContinue()) {
  +    if (shouldContinue()) {
         showWidget = !showWidget;
         _hostState._setStateTrampoline();
       } else {
  
positive.code: abstract class SceneBuilderRecorder extends Recorder {
    SceneBuilderRecorder({@required String name}) : super._(name, true);
  
    /// Called from [Window.onBeginFrame].
    @mustCallSuper
    void onBeginFrame() {}
  
negative.code:   @override
    VoidCallback didStop;
  
    @override
    Profile profile;
    Completer<void> _runCompleter;
  
  