Handle deferred parsing of NSDMIs.

Handle deferred parsing of NSDMIs.

	* parser.h (cp_unparsed_functions_entry): Add nsdmis field.
	* parser.c (unparsed_nsdmis, cp_parser_save_nsdmi): New.
	(cp_parser_late_parse_one_default_arg): Split out from
	cp_parser_late_parsing_default_args.
	(cp_parser_late_parsing_nsdmi): New.
	(push_unparsed_function_queues): Set it.
	(cp_parser_parameter_declaration): Save the '=' token.
	(cp_parser_template_parameter): Likewise.
	(cp_parser_default_argument): Call cp_parser_initializer
	rather than cp_parser_initializer_clause.
	(cp_parser_class_specifier_1): Parse unparsed_nsdmis.
	(cp_parser_member_declaration): Handle nsdmis.
	* decl2.c (grokfield): Handle DEFAULT_ARG for a function.

From-SVN: r179156