anchor.diff:        return;
       }
   
  -    ga?.sendEvent('execution', 'initiated');
  +    _executionButtonCount++;
  +    ga?.sendEvent('execution', 'initiated', label: '$_executionButtonCount');
   
       editorIsBusy = true;
       testResultBox.hide();
  
positive.code: /// snippet against a desired result.
  class NewEmbed {
    final NewEmbedOptions options;
    DisableableButton executeButton;
    DisableableButton reloadGistButton;
    DisableableButton formatButton;
  
negative.code:         tabController.selectTab('solution', force: true);
        });
        hintBox.showElements([hintElement, showSolutionButton]);
        ga?.sendEvent('view', 'hint');
      })
        ..hidden = true;
  
  