Ensure CUDA lowering of math.frexp behave the same
Ensure CUDA lowering of math.frexp behave the same

For non-finite values, exp = 0.  Note that this is different
from np.frexp, which gives exp = -1.

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