isl_qpolynomial_domain_dim: handle isl_dim_div and isl_dim_all
isl_qpolynomial_domain_dim: handle isl_dim_div and isl_dim_all

Both cases will be needed in the next commit.

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

UBERTC/isl,Meinersbur/isl,PollyLabs/isl,tobig/isl,nicolasvasilache/isl,PollyLabs/isl,inducer/isl-mirror,PollyLabs/isl,nicolasvasilache/isl,inducer/isl-mirror,inducer/isl-mirror,inducer/isl-mirror,UBERTC/isl,Meinersbur/isl,UBERTC/isl,inducer/isl-mirror,PollyLabs/isl,tobig/isl,Meinersbur/isl,nicolasvasilache/isl,tobig/isl,Meinersbur/isl,nicolasvasilache/isl,PollyLabs/isl,nicolasvasilache/isl,tobig/isl,UBERTC/isl