anchor.diff:  ListGroupItemType ListGroupItem =
       ({props, children}) => raw.ListGroupItem_Raw(props, children);
   
  -typedef MenuItemType({Map props, dynamic children});
  -
  -MenuItemType MenuItem =
  -    ({props, children}) => raw.MenuItem_Raw(props, children);
  +typedef MenuItemType({bool header, bool divider, String href, String title,
  +    String target, OnSelectHandler onSelect, dynamic eventKey, bool active,
  +    bool disabled, Map props, dynamic children});
  +
  +MenuItemType MenuItem = ({header, divider, href: '#', title, target, onSelect,
  +    eventKey, active: false, disabled, props, children}) => raw.MenuItem_Raw(
  +        _mergeMaps({
  +  'header': header,
  +  'divider': divider,
  +  'href': href,
  +  'title': title,
  +  'target': target,
  +  'onSelect': onSelect,
  +  'eventKey': eventKey,
  +  'active': active,
  +  'disabled': disabled,
  +}, props), children);
   
   typedef ModalType({Map props, dynamic children});
   
  
positive.code: 
  typedef NavType({dynamic key, CLASSES bsClass, NAV_STYLES bsStyle, SIZES bsSize,
      String activeHref, dynamic activeKey, bool stacked, bool justified,
      Function onSelect, bool collapsible, bool expanded, bool navbar,
      dynamic eventKey, bool pullRight, bool right, bool defaultExpanded,
      Map props, dynamic children});
  
  
negative.code:     ({props, children}) => raw.CollapsibleMixin_Raw(props, children);
  
  typedef DropdownButtonType({CLASSES bsClass, STYLES bsStyle, SIZES bsSize,
      bool pullRight, bool dropup, dynamic title, String href,
      OnClickHandler onClick, OnSelectHandler onSelect, bool navItem,
      bool noCaret, String buttonClassName, Map props, dynamic children});
  
  DropdownButtonType DropdownButton = ({bsClass: CLASSES.button, bsStyle, bsSize,
      pullRight, dropup, title, href, onClick, onSelect, navItem, noCaret,
      buttonClassName, props, children}) => raw.DropdownButton_Raw(_mergeMaps({
    'bsClass': CLASSES_MAP[bsClass],
    'bsStyle': STYLES_MAP[bsStyle],
    'bsSize': SIZES_MAP[bsSize],
  