decl.c (grokfndecl): Remove redundant use of in_system_header_at.

decl.c (grokfndecl): Remove redundant use of in_system_header_at.

/cp
2019-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokfndecl): Remove redundant use of in_system_header_at.
	(compute_array_index_type_loc): Likewise.
	(grokdeclarator): Likewise.
	* error.c (cp_printer): Likewise.
	* lambda.c (add_default_capture): Likewise.
	* parser.c (cp_parser_primary_expression): Likewise.
	(cp_parser_selection_statement): Likewise.
	(cp_parser_toplevel_declaration): Likewise.
	(cp_parser_enumerator_list): Likewise.
	(cp_parser_using_declaration): Likewise.
	(cp_parser_member_declaration): Likewise.
	(cp_parser_exception_specification_opt): Likewise.
	(cp_parser_std_attribute_spec): Likewise.
	* pt.c (do_decl_instantiation): Likewise.
	(do_type_instantiation): Likewise.
	* typeck.c (cp_build_unary_op): Likewise.

	* decl.c (check_tag_decl): Pass to in_system_header_at the same
	location used for the permerror.
	(grokdeclarator): Likewise.

	* decl.c (check_tag_decl): Use locations[ds_typedef] in error_at.

/testsuite
2019-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.old-deja/g++.other/decl9.C: Check locations too.

From-SVN: r277133