deprecate the old TryValidator/Parent() and replace them with the new and documented TryBefore/After()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59164 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/mdi.h

@@ -109,7 +109,7 @@ public:
 
 protected:
     // override to pass menu/toolbar events to the active child first
-    virtual bool TryValidator(wxEvent& event);
+    virtual bool TryBefore(wxEvent& event);
 
 #if wxUSE_MENUS_NATIVE
     virtual void InternalSetMenuBar();