RefPtr<>: Don't mention RefPtr<T_CppObject> when just RefPtr is allowed.
RefPtr<>: Don't mention RefPtr<T_CppObject> when just RefPtr is allowed.

This seems to be correct and allowed. It makes the code clearer.

GNOME/glibmm,GNOME/glibmm,GNOME/glibmm,GNOME/glibmm,GNOME/glibmm