More compilation fixes after wxNOEXCEPT introduction.

This is a temporary change, r72984 and the following changes (see #14826) will
probably be reverted soon anyhow, but for now at least fix wxGTK compilation.

Closes #14837.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72989 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/treectlg.cpp

@@ -95,6 +95,8 @@ class WXDLLEXPORT wxTreeTextCtrl: public wxTextCtrl
 public:
     wxTreeTextCtrl(wxGenericTreeCtrl *owner, wxGenericTreeItem *item);
 
+    virtual ~wxTreeTextCtrl() wxNOEXCEPT {}
+
     void EndEdit( bool discardChanges );
 
     const wxGenericTreeItem* item() const { return m_itemEdited; }