* cp-tree.def (LOOKUP_EXPR): Remove.
	* cp-tree.h (cp_id_kind): Add CP_ID_KIND_UNQUALIFIED_DEPENDENT.
	(LOOKUP_EXPR_GLOBAL): Remove.
	(get_bindings): Remove.
	(is_aggr_type_2): Remove.
	* call.c (resolved_scoped_fn_name): Remove support for
	LOOKUP_EXPR.
	* decl.c (grokfndecl): Likewise.
	(grokdeclarator): Likewise.
	* error.c (dump_decl): Likewise.
	(dump_expr): Likewise.
	* friend.c (do_friend): Likewise.
	* init.c (build_offset_ref): Likewise.
	* lex.c (unqualified_fn_lookup_error): Use pedwarn.  Do not create
	LOOKUP_EXPRs
	* mangle.c (write_expression): Remove support for LOOKUP_EXPR.
	* parser.c (cp_parser_postfix_expression): Modify Koenig lookup
	test.
	* pt.c (get_bindings): Give it internal linkage.
	(check_explicit_specialization): Remove support for LOOKUP_EXPR.
	(lookup_template_function): Likewise.
	(for_each_tempalte_parm_r): Likewise.
	(tsubst_decl): Likewise.
	(tsubst_qualified_id): Handle template template parameters.
	(tsubst_copy): Remove support for LOOKUP_EXPR.
	(tsubst_copy_and_build): Likewise.
	(most_general_template): Likewise.
	(value_dependent_expression_p): Likewise.
	(type_dependent_expression_p): Note that IDENTIFIER_NODEs are
	always dependent.
	* semantics.c (perform_koenig_lookup): Do not create
	IDENTIFIER_NODEs.
	(finish_fname): Likewise.
	(finish_id_expression): Likewise.
	* tree.c (is_aggr_type_2): Remove.

From-SVN: r69427