anchor.diff:    @override
     @Input()
     set factoryRenderer(FactoryRenderer value) => super.factoryRenderer = value;
  -
  -  @Deprecated('Caller should call .sort() on the options instead.')
  -  @Input()
  -  set sorted(bool value) {
  -    _sorted = value;
  -    _refreshOptions = true;
  -  }
  -
  -  bool get sorted => _sorted;
   
     /// Function for use by NgFor for optionGroup to avoid recreating the
     /// DOM for the optionGroup.
  
positive.code:   bool _focusPending = false;
    MaterialInputComponent _input;
    _InputChangeCallback _callback;
    bool _sorted = true;
    List _suggestions = [];
    bool _refreshOptions = false;
  
    /// The current text being displayed.
    String _inputText = '';
  
negative.code:       if (stringValue != null) return stringValue as String;
      }
      return null;
    }
  
    @override
  