Add --isl-ast-always-print-block switch
Add --isl-ast-always-print-block switch


Former-commit-id: 9eeff587aca388c7b65a3b13938335a76384f08b
pencil-language/pencil-benchmark,rbaghdadi/pencil-benchmark,rbaghdadi/pencil-benchmark,dividiti/pencil-benchmark,pencil-language/pencil-benchmark,pencil-language/pencil-benchmark,dividiti/pencil-benchmark,dividiti/pencil-benchmark,rbaghdadi/pencil-benchmark