avoiding Insert shadowing superclass methods, closes #11616

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63179 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/sizer.h

@@ -735,6 +735,11 @@ public:
 
     virtual wxSizerItem *Insert(size_t index, wxSizerItem *item);
 
+#ifdef __WXOSX__
+    // TODO change to better condition
+    using wxSizer::Insert;
+#endif
+
     virtual void RecalcSizes();
     virtual wxSize CalcMin();