testsuite: Run __bos tests to completion

testsuite: Run __bos tests to completion

Instead of failing on first error, run all __builtin_object_size and
__builtin_dynamic_object_size tests to completion and then provide a
summary of which tests failed.

gcc/testsuite/ChangeLog:

	* gcc.dg/builtin-dynamic-object-size-0.c: Move FAIL and nfail
	into...
	* gcc.dg/builtin-object-size-common.h: ... new file.
	* g++.dg/ext/builtin-object-size1.C: Include
	builtin-object-size-common.h.  Replace all abort with FAIL.
	(main): Call DONE.
	* g++.dg/ext/builtin-object-size2.C: Likewise.
	* gcc.dg/builtin-object-size-1.c: Likewise.
	* gcc.dg/builtin-object-size-12.c: Likewise.
	* gcc.dg/builtin-object-size-13.c: Likewise.
	* gcc.dg/builtin-object-size-15.c: Likewise.
	* gcc.dg/builtin-object-size-2.c: Likewise.
	* gcc.dg/builtin-object-size-3.c: Likewise.
	* gcc.dg/builtin-object-size-4.c: Likewise.
	* gcc.dg/builtin-object-size-6.c: Likewise.
	* gcc.dg/builtin-object-size-7.c: Likewise.
	* gcc.dg/builtin-object-size-8.c: Likewise.
	* gcc.dg/pr101836.c: Likewise.
	* gcc.dg/strict-flex-array-3.c: Likewise.

Signed-off-by: Siddhesh Poyarekar <siddhesh@gotplt.org>