isl_multi_aff_set_dim_name: do not set name of elements if type is isl_dim_out
isl_multi_aff_set_dim_name: do not set name of elements if type is isl_dim_out

An isl_aff does not keep track of the name of its output dimension.
Even if it did, we would have to change the name of only the specified
element and not of all elements as we did before this commit.

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

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