[AArch64 testsuite] Make vect-abs.c C99 compliant

	* gcc.target/aarch64/vect-abs.c (dg-options): Add -std=c99.
	(LONG_LONG): Use LLONG.
	(set_rvector_long): Explicitly return void.
	(set_vector_long): Likewise.
	(check_vector_long): Likewise.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208788 138bc75d-0d04-0410-961f-82ee72b054a4