Change m_windowCurrent to m_currentNSWindow such that m_currentNSWindow is

never used directly but only to look up the associated wxCocoaNSWindow.
If the wxCocoaNSWindow cannot be found later in UpdateMenuBar then it's
likely been destroyed but no crash will result as before.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26720 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/cocoa/mbarman.h

@@ -64,7 +64,7 @@ protected:
     // Main menu (if app provides one)
     wxMenuBar *m_mainMenuBar;
     wxMenuBarManagerObserver *m_observer;
-    wxCocoaNSWindow *m_windowCurrent;
+    WX_NSWindow m_currentNSWindow;
 };
 
 #endif // wxUSE_MENUS