Method showItemChild

MyGUIEngine/src/MyGUI_BackwardCompatibility.cpp:346–349

		static_cast<MenuControl*>(this)->setItemChildVisibleAt(_index, true);
	}
	void MemberObsolete<MenuControl>::showItemChild(MenuItem* _item)
	{
		static_cast<MenuControl*>(this)->setItemChildVisible(_item, true);
	}
	void MemberObsolete<MenuControl>::hideItemChildAt(size_t _index)
	{
		static_cast<MenuControl*>(this)->setItemChildVisibleAt(_index, false);