anchor.diff:  
           test('$childrenCount', () {
             final expectedChildren = new List.generate(childrenCount, (i) => i + 1);
  -          final arguments = <dynamic>[{...props}]..add(expectedChildren);
  +          final arguments = <dynamic>[
  +            {...props}
  +          ]..add(expectedChildren);
             final instance = Function.apply(factory, arguments);
             expect(getChildren(instance), expectedChildren);
           });
         }
   
         test('$maxSupportedVariadicChildCount (and passes static analysis)', () {
  -        final instance = factory({...props}, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
  -            24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40);
  +        final instance = factory({...props}, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
  +            22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40);
           // Generate these instead of hard coding them to ensure the arguments passed into this test match maxSupportedVariadicChildCount
           final expectedChildren = new List.generate(maxSupportedVariadicChildCount, (i) => i + 1);
           expect(getChildren(instance), equals(expectedChildren));
  
positive.code: ///
  /// [dartComponentVersion] should be specified for all components with Dart render code in order to
  /// properly test `props.children`, forwardRef compatibility, etc.
  void commonFactoryTests(ReactComponentFactoryProxy factory, {bool isFunctionComponent = false, String dartComponentVersion}) {
    _childKeyWarningTests(
      factory,
      renderWithUniqueOwnerName: _renderWithUniqueOwnerName,
  
negative.code:   });
  
    group('forwardRef wraps event handlers properly,', () {
      const dartInside = EventTestCase.dart('onMouseDown', 'inside forwardRef');
      const dart = EventTestCase.dart('onMouseUp', 'set on forwardRef hoc');
      const dartCloned = EventTestCase.dart('onMouseLeave', 'cloned onto forwardRef hoc');
  