recompute CFG and topo sort labels before lowering parfors
recompute CFG and topo sort labels before lowering parfors

jriehl/numba,IntelLabs/numba,stuartarchibald/numba,cpcloud/numba,cpcloud/numba,IntelLabs/numba,numba/numba,cpcloud/numba,gmarkall/numba,gmarkall/numba,stuartarchibald/numba,jriehl/numba,stonebig/numba,gmarkall/numba,numba/numba,stonebig/numba,jriehl/numba,sklam/numba,sklam/numba,numba/numba,cpcloud/numba,IntelLabs/numba,seibert/numba,numba/numba,jriehl/numba,sklam/numba,cpcloud/numba,stonebig/numba,stuartarchibald/numba,IntelLabs/numba,stonebig/numba,sklam/numba,numba/numba,stuartarchibald/numba,gmarkall/numba,stonebig/numba,stuartarchibald/numba,gmarkall/numba,seibert/numba,seibert/numba,IntelLabs/numba,jriehl/numba,seibert/numba,seibert/numba,sklam/numba