* dwarf2out.c (add_AT_string): Call ggc_strdup once per string.
        (type_tag): Use lang_hooks.dwarf_name instead of DECL_NAME.

        * cp-tree.h (TFF_NO_OUTER_SCOPE): New formatting flag.
        * error.c (dump_aggr_type, dump_simple_decl, dump_decl,
        dump_function_decl): Guard emitting outer scopes by new flag.
        * cp-lang.c (cxx_dwarf_name): New function.
        (LANG_HOOKS_DWARF_NAME): Define to cxx_dwarf_name.
        * pt.c (classtype_mangled_name, mangle_class_name_for_template):
        Remove functions.
        (push_template_decl_real, lookup_template_class): Remove calls
        to above functions.

From-SVN: r122230