anchor.diff:    ///
     /// Latency sensitive! Used by checkBinding during change detection.
     static bool get throwOnChanges => isDevMode && _throwOnChanges;
  -  static set throwOnChanges(bool value) => _throwOnChanges = value;
     static bool _throwOnChanges = false;
     static int _throwOnChangesCounter = 0;
  -
  -  SanitizationService sanitizer;
   
     AppViewUtils(@Inject(APP_ID) this._appId, this.sanitizer, this.eventManager);
   
  
positive.code: @Injectable()
  class AppViewUtils {
    final String _appId;
    EventManager eventManager;
    static int _nextCompTypeId = 0;
  
    /// Whether change detection should throw an exception when a change is
  
negative.code:   /// stable.
    static void exitThrowOnChanges() {
      _throwOnChangesCounter--;
      _throwOnChanges = _throwOnChangesCounter != 0;
    }
  
    /// Used in tests that cause exceptions on purpose.
    static void resetChangeDetection() {
      _throwOnChangesCounter = 0;
      _throwOnChanges = false;
    }
  }
  
  