Fixed wxValidator::Clone and friends to return a wxObject* to keep

MS VC++ happy


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2309 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/valtext.h

@@ -39,7 +39,7 @@ public:
   // if you're passing a reference to a validator.
   // Another possibility is to always pass a pointer to a new validator
   // (so the calling code can use a copy constructor of the relevant class).
-  virtual wxValidator *Clone(void) const { return new wxTextValidator(*this); }
+  virtual wxObject *Clone(void) const { return new wxTextValidator(*this); }
   bool Copy(const wxTextValidator& val);
 
   // Called when the value in the window must be validated.