* cp-tree.h (lang_identifier): Remove class_value.
	(IDENTIFIER_CLASS_VALUE): Remove.
	(pop_class_decls): Likewise.
	(init_search_processing): Likewise.
	* class.c (handle_using_decl): Use lookup_member, not
	IDENTIFIER_CLASS_VALUE.
	(restore_class_cache): New function, split out from ...
	(pushclass): ... here.  Do not call clear_identifier_class_values.
	(invalidate_class_lookup_cache): Do not clear
	IDENTIFIER_CLASS_VALUE.
	(popclass): Do not call pop_class_decls.
	(maybe_note_name_used_in_class): Do not save names looked up after
	the class is complete.  Use lookup_member, not
	IDENTIFIER_CLASS_VALUE.
	* config-lang.in (gtfiles): Add $(srcdir)/cp/search.c.
	* decl.c (cxx_init_decl_processing): Do not call
	init_search_processing.
	* method.c (do_build_copy_constructor): Remove unnecessary code.
	(do_build_assign_ref): Likewise.
	* name-lookup.c (pushdecl): Use lookup_member, not
	IDENTIFIER_CLASS_VALUE.
	(set_identifier_type_value_with_scope): Set TREE_TYPE on the
	type_shadowed list.
	(poplevel_class): Do not restore IDENTIFIER_CLASS_VALUE.
	(push_class_binding): Do not set it.
	(clear_identifier_class_values): Remove.
	(push_class_level_binding): Do not set IDENTIFIER_CLASS_VALUE.
	(store_binding): Do not save it.
	(pop_from_top_level): Do not restore it.
	* name-lookup.h (cxx_saved_binding): Remove class_value.
	(clear_identifier_class_values): Remove.
	* ptree.c (cxx_print_identifier): Do not print
	IDENTIFIER_CLASS_VALUE.
	* search.c (search_obstack): Remove.
	(push_stack_level): Remove.
	(pop_stack_level): Remove.
	(search_level): Remove.
	(search_stack): Remove.
	(lookup_member): Don't check IDENTIFIER_CLASS_VALUE.
	(setup_class_bindings): Use IDENTIFIER_MARKED, not
	IDENTIFIER_CLASS_VALUE.
	(marked_identifiers): New variable.
	(push_class_decls): Clear IDENTIFIER_MARKED.
	(pop_class_decls): Don't call pop_search_level.
	(init_search_processing): Remove.

From-SVN: r84629