[VxWorks] Various testsuite patches

[Nathan Sidwell]

Richard Sandiford wrote:

> 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 list of targets with inttypes.h to
/with/without

> 	include VxWorks.
> 	* gcc.dg/vxworks/initpri2.c: Require vxworks_kernel.

ok

nathan
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