target-supports.exp (check_profiling_available): Return false for VxWorks.

target-supports.exp (check_profiling_available): Return false for VxWorks.

gcc/testsuite/
	* lib/target-supports.exp (check_profiling_available): Return false
	for VxWorks.
	(check_effective_target_vxworks_kernel): New procedure.
	* gcc.dg/20040813-1.c: Extend list of stabless targets to include
	VxWorks.
	* gcc.dg/builtins-config.h: Do not define HAVE_C99_RUNTIME on VxWorks.
	* gcc.dg/intmax_t-1.c: Extend the list of targets without inttypes.h
	to include VxWorks.
	* gcc.dg/vxworks/initpri2.c: Require vxworks_kernel.

From-SVN: r122838