use wxUIntPtr instead of long for 3rd parameter of wxListCtrl::SortItems() to allow passing pointers to it

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60182 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/listctrl.h

@@ -353,7 +353,7 @@ public:
     // or zero if the two items are equivalent.
 
     // data is arbitrary data to be passed to the sort function.
-    bool SortItems(wxListCtrlCompare fn, long data);
+    bool SortItems(wxListCtrlCompare fn, wxUIntPtr data);
 
     // IMPLEMENTATION
     virtual bool MSWCommand(WXUINT param, WXWORD id);