anchor.diff:          this.defaultProps = new JsBackedMap.fromJs(reactClass.defaultProps);
   
     ReactClass get type => reactClass;
  +
  +  /// Returns a JavaScript version of the specified [props], preprocessed for consumption by ReactJS and prepared for
  +  /// consumption by the [react] library internals.
  +  static JsMap generateExtendedJsProps(Map props) => _generateJsProps(props, convertEventHandlers: false, wrapWithJsify: false);
   }
   
   /// Converts a list of variadic children arguments to children that should be passed to ReactJS.
  
positive.code:     }
    }
  
    if (children == null) {
      children = shouldAlwaysBeList ? childrenArgs.map(listifyChildren).toList() : childrenArgs;
      markChildrenValidated(children);
  
negative.code:   @override
    ReactElement build(Map props, [List childrenArgs = const []]) {
      var children = _generateChildren(childrenArgs);
      var convertedProps = _generateJsProps(props, convertCallbackRefValue: false, wrapWithJsify: true);
      return React.createElement(type, convertedProps, children);
    }
  
  