added unittest for namedtuple indexing using uintp
added unittest for namedtuple indexing using uintp

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