privately export isl_set_set_rational
privately export isl_set_set_rational

We will need it in the next commit.

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

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