Fix enumerate invalid decref
Fix enumerate invalid decref

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