re PR c++/21581 ((optimisation) Functions in anonymous namespaces should...

re PR c++/21581 ((optimisation) Functions in anonymous namespaces should default to "hidden" visibility)

        PR c++/21581
        * parser.c (cp_parser_declaration): Support attributes on
        anonymous namespaces.
        * name-lookup.c (push_namespace_with_attribs): Anonymous
        namespaces default to hidden visibility.

From-SVN: r112250