pt.c (check_explicit_specialization): If DECLARATOR turned into an error_mark_node...

pt.c (check_explicit_specialization): If DECLARATOR turned into an error_mark_node from lookup_template_function...

	* pt.c (check_explicit_specialization): If DECLARATOR turned into
	an error_mark_node from lookup_template_function, return the same.
	(determine_specialization): Also make sure TEMPLATE_ID isn't an
	error_mark_node, before we try to read its operands.
	* decl.c (grokdeclarator): If we got an error_mark_node from
	check_explicit_specialization, just return it right back.

From-SVN: r20444