add a new menu for wxTextEntry-specific tests, currently it allows to check how auto-completion works (#9614)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54414 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/widgets/odcombobox.cpp

@@ -92,6 +92,8 @@ public:
     ODComboboxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
 
     virtual wxControl *GetWidget() const { return m_combobox; }
+    virtual wxTextEntryBase *GetTextEntry() const
+        { return m_combobox ? m_combobox->GetTextCtrl() : NULL; }
     virtual wxItemContainer* GetContainer() const { return m_combobox; }
     virtual void RecreateWidget() { CreateCombo(); }