Added unit test for signature-less vectorize decoration.
Added unit test for signature-less vectorize decoration.

GaZ3ll3/numba,pitrou/numba,jriehl/numba,gmarkall/numba,stonebig/numba,ssarangi/numba,seibert/numba,stefanseefeld/numba,stuartarchibald/numba,stefanseefeld/numba,stonebig/numba,IntelLabs/numba,stuartarchibald/numba,numba/numba,gmarkall/numba,gmarkall/numba,pombredanne/numba,jriehl/numba,cpcloud/numba,pitrou/numba,stuartarchibald/numba,GaZ3ll3/numba,seibert/numba,gdementen/numba,ssarangi/numba,GaZ3ll3/numba,numba/numba,gdementen/numba,GaZ3ll3/numba,IntelLabs/numba,stonebig/numba,pombredanne/numba,sklam/numba,numba/numba,stefanseefeld/numba,jriehl/numba,gdementen/numba,gdementen/numba,IntelLabs/numba,jriehl/numba,pombredanne/numba,gmarkall/numba,pitrou/numba,GaZ3ll3/numba,gmarkall/numba,numba/numba,numba/numba,pitrou/numba,cpcloud/numba,sklam/numba,sklam/numba,stefanseefeld/numba,stuartarchibald/numba,pombredanne/numba,seibert/numba,stefanseefeld/numba,sklam/numba,ssarangi/numba,stuartarchibald/numba,gdementen/numba,IntelLabs/numba,seibert/numba,stonebig/numba,stonebig/numba,cpcloud/numba,IntelLabs/numba,sklam/numba,cpcloud/numba,cpcloud/numba,ssarangi/numba,ssarangi/numba,jriehl/numba,seibert/numba,pitrou/numba,pombredanne/numba