Add test for issue 4630.
Add test for issue 4630.

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