re PR c++/15786 (Bad error message for frequently occuring error.)

re PR c++/15786 (Bad error message for frequently occuring error.)

	PR c++/15786
	* parser.c (cp_parser_declarator): Add member_p parameter.
	(cp_parser_condition): Adjust calls to cp_parser_declarator.
	(cp_parser_explicit_instantiation): Likewise.
	(cp_parser_init_declarator): Likewise.
	(cp_parser_direct_declarator): Add member_p parameter.  Do not
	parse tentatively when parsing the parameters to a member.
	(cp_parser_type_id): Adjust calls to cp_parser_declarator.
	(cp_parser_parameter_declaration): Likewise.
	(cp_parser_member_declaration): Likewise.
	(cp_parser_exception_declaration): Likewise.

	PR c++/15876
	* g++.dg/parse/error22.C: New test.

From-SVN: r88914