use wxPtrToUInt/UIntToPtr instead of (removed) ULong versions

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29898 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/treebase.h

@@ -61,7 +61,7 @@ public:
 
 #if WXWIN_COMPATIBILITY_2_4
     // deprecated: only for compatibility, don't work on 64 bit archs
-    wxTreeItemId(long item) { wxULongToPtr(m_pItem, item); }
+    wxTreeItemId(long item) { m_pItem = wxUIntToPtr(item); }
     operator long() const { return (long)wxPtrToUInt(m_pItem); }
 #else // !WXWIN_COMPATIBILITY_2_4
     operator bool() const { return IsOk(); }