c-parser.c (c_parser_omp_requires): Call sorry_at on requires clauses other than atomic_default_mem_order.

	* c-parser.c (c_parser_omp_requires): Call sorry_at on requires
	clauses other than atomic_default_mem_order.

	* parser.c (cp_parser_omp_requires): Call sorry_at on requires
	clauses other than atomic_default_mem_order.

	* c-c++-common/gomp/requires-1.c: Prune not supported yet messages.
	* c-c++-common/gomp/requires-2.c: Likewise.
	* c-c++-common/gomp/requires-4.c: Likewise.

From-SVN: r265988