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/validate.h

@@ -42,7 +42,7 @@ 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() const
+    virtual wxObject *Clone() const
         { return (wxValidator *)NULL; }
     bool Copy(const wxValidator& val)
         { m_validatorWindow = val.m_validatorWindow; return TRUE; }