* decl.c (duplicate_decls): Use same_type_p.
* method.c (try_old_backref): Renamed from flush_repeats. Use
same_type_p. Don't try to handle repeats. Return success.
(is_back_referenceable_type): Return 0 if TYPE_FOR_JAVA. Support
calls from old-style code, too.
(check_ktype): Use same_type_p.
(check_btype): Use same_type_p. Don't pull out TYPE_MAIN_VARIANT.
(build_qualified_name): Simplify logic.
(build_mangled_name_for_type_with_Gcode): Remove call to
type_canonical_variant.
(process_overload_item): Strip typedefs and quals at the top.
(build_mangled_name): Likewise. Remove support for old-style
repeats, which have been disabled since 2.7.2. Don't mess with
TREE_USED.
(build_decl_overload_real): Don't mess with TREE_USED.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25758
138bc75d-0d04-0410-961f-
82ee72b054a4