isl_ast_build_has_stride: use isl_val
isl_ast_build_has_stride: use isl_val

Signed-off-by: Sven Verdoolaege <e5350bbed4977f5eb8ae1dc6abd9ae59d21ace75@kotnet.org>

nicolasvasilache/isl,simbuerg/isl,tobig/isl,jleben/isl,BobSaget-Mod/libisl,VanirLLVM/toolchain_isl,simbuerg/isl,inducer/isl-mirror,UBERTC/isl,Meinersbur/isl,crossbuild/isl,crossbuild/isl,PollyLabs/isl,nicolasvasilache/isl,tobig/isl,serge-sans-paille/isl,cfx-next/toolchain_isl-upstream,cfx-next/toolchain_isl-upstream,Distrotech/isl,KangDroidSMProject/ISL,Meinersbur/isl,serge-sans-paille/isl,crossbuild/isl,abduld/isl,KangDroidSMProject/ISL,Distrotech/isl,BenzoSM/isl,UBERTC/isl,VanirLLVM/toolchain_isl,evaautomation/isl,SaberMod/isl-current,abduld/isl,abduld/isl,Distrotech/isl,jleben/isl,inducer/isl-mirror,UBERTC/isl,BobSaget-Mod/libisl,PollyLabs/isl,VanirLLVM/toolchain_isl,inducer/isl-mirror,jleben/isl,BobSaget-Mod/libisl,KangDroidSMProject/ISL,simbuerg/isl,Distrotech/isl,BobSaget-Mod/libisl,evaautomation/isl,serge-sans-paille/isl,tobig/isl,nicolasvasilache/isl,evaautomation/isl,serge-sans-paille/isl,KangDroidSMProject/ISL,VanirLLVM/toolchain_isl,cfx-next/toolchain_isl-upstream,jleben/isl,BenzoSM/isl,SaberMod/isl-current,SaberMod/isl-current,evaautomation/isl,PollyLabs/isl,KangDroidSMProject/ISL,jleben/isl,simbuerg/isl,BobSaget-Mod/libisl,UBERTC/isl,PollyLabs/isl,BenzoSM/isl,cfx-next/toolchain_isl-upstream,Distrotech/isl,BenzoSM/isl,cfx-next/toolchain_isl-upstream,serge-sans-paille/isl,tobig/isl,inducer/isl-mirror,abduld/isl,crossbuild/isl,VanirLLVM/toolchain_isl,nicolasvasilache/isl,nicolasvasilache/isl,BenzoSM/isl,Meinersbur/isl,inducer/isl-mirror,Meinersbur/isl,simbuerg/isl,PollyLabs/isl,SaberMod/isl-current