Fix up test relying on ir.Del presence
Fix up test relying on ir.Del presence

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