implement antiquated isl_set_n_* in terms of isl_set_dim
implement antiquated isl_set_n_* in terms of isl_set_dim

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