add test for DeviceNDArray dtype bug
add test for DeviceNDArray dtype bug

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