c-parser.c (c_parser_pragma): Error when PRAGMA_OACC_{ENTER_DATA...

c-parser.c (c_parser_pragma): Error when PRAGMA_OACC_{ENTER_DATA...

	gcc/c/
	* c-parser.c (c_parser_pragma): Error when PRAGMA_OACC_{ENTER_DATA,
	EXIT_DATA,WAIT} are not used in compound statements.
	(c_parser_oacc_enter_exit_data): Update diagnostics.

	gcc/cp/
	* parser.c (cp_parser_oacc_enter_exit_data): Update diagnostics.
	(cp_parser_pragma): Error when PRAGMA_OACC_{ENTER_DATA,
	EXIT_DATA,WAIT} are not used in compound statements.

	gcc/testsuite/
	* c-c++-common/goacc/data-2.c: Adjust test.
	* c-c++-common/goacc/executeables-1.c: New test.
	* g++.dg/goacc/data-1.C: Adjust test.

Co-Authored-By: James Norris <jnorris@codesourcery.com>
From-SVN: r243185