PR c++/13170
        * decl.c (xref_tag): Remove attribute handling.
        * cp-tree.h: Adjust prototype.
        * decl.c, parser.c, rtti.c: Adjust callers.
        * parser.c (cp_parser_class_head): Pass back attributes in the
        class head.
        (cp_parser_class_specifier): Adjust.

From-SVN: r79129