[PR92503] [OpenACC] Don't silently 'acc_unmap_data' in 'acc_free'

	libgomp/
	PR libgomp/92503
	* oacc-mem.c (acc_free): Error out instead of 'acc_unmap_data'.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-1.c: New
	file.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-3-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-3.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-4-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-4.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/clauses-1.c: Adjust.
	* testsuite/libgomp.oacc-c-c++-common/context-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/context-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/context-3.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/context-4.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/lib-13.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/lib-14.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/lib-18.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/lib-91.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/nested-1.c: Likewise.

From-SVN: r279146