fix compilation error after r50329: wxMenu doesn't have HandleWindowEvent() as it's not a window

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50351 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/menu.cpp

@@ -374,7 +374,7 @@ bool wxMenu::ProcessCommand(wxCommandEvent & event)
 
     // Try the menu's event handler
     if ( /* !processed && */ GetEventHandler())
-        processed = HandleWindowEvent(event);
+        processed = GetEventHandler()->SafelyProcessEvent(event);
 
     // Try the window the menu was popped up from
     // (and up through the hierarchy)