anchor.diff:    /// > Use the [defaultProps] getter instead.
     @mustCallSuper
     @Deprecated('6.0.0')
  -  Map getDefaultProps() {
  -    _unsupportedLifecycleError('getDefaultProps');
  -  }
  +  Map getDefaultProps() => throw _unsupportedLifecycleError('getDefaultProps');
   
     /// ReactJS lifecycle method that is invoked once, both on the client and server, immediately before the initial
     /// rendering occurs.
  
positive.code:   /// > This will be completely removed when the JS side of it is slated for removal (ReactJS 17 / react.dart 6.0.0)
    @mustCallSuper
    @Deprecated('6.0.0')
    void componentWillReceiveProps(Map newProps) => _unsupportedLifecycleError('componentWillReceiveProps');
  
    /// ReactJS lifecycle method that is invoked immediately before rendering when [nextProps] or [nextState] are being
    /// received.
  
negative.code:   /// > Use [componentDidMount] instead
    @mustCallSuper
    @Deprecated('6.0.0')
    void componentWillMount() => throw _unsupportedLifecycleError('componentWillMount');
  
    /// ReactJS lifecycle method that is invoked when a `Component` is receiving [newProps].
    ///
  