Correct some minor compile pbs with VC++1.52c & VC++4.1

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2777 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/treectrl.h

@@ -435,7 +435,7 @@ public:
     void Unselect();
     void UnselectAll();
         // select this item
-    void SelectItem(const wxTreeItemId& item, bool unselect_others=true, bool extended_select=false);
+    void SelectItem(const wxTreeItemId& item, bool unselect_others=TRUE, bool extended_select=FALSE);
         // make sure this item is visible (expanding the parent item and/or
         // scrolling to this item if necessary)
     void EnsureVisible(const wxTreeItemId& item);