isl_union_map_from_map: explicitly project on parameter space
isl_union_map_from_map: explicitly project on parameter space

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

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