Send generic wxTreeCtrl wxEVT_COMMAND_TREE_KEY_DOWN events from OnKeyDown rather than OnChar. This change means it sends events for the same keys as the wxMSW control. It also fixes the failing unit test.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65587 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/treectlg.h

@@ -211,6 +211,7 @@ public:
     void OnPaint( wxPaintEvent &event );
     void OnSetFocus( wxFocusEvent &event );
     void OnKillFocus( wxFocusEvent &event );
+    void OnKeyDown( wxKeyEvent &event );
     void OnChar( wxKeyEvent &event );
     void OnMouse( wxMouseEvent &event );
     void OnGetToolTip( wxTreeEvent &event );