small refactor in ufunc code generation
small refactor in ufunc code generation

repeated code handling type info extraction for ufunc code generation
to a private function.
seibert/numba,IntelLabs/numba,ssarangi/numba,GaZ3ll3/numba,numba/numba,seibert/numba,seibert/numba,stefanseefeld/numba,pitrou/numba,gmarkall/numba,stonebig/numba,stonebig/numba,seibert/numba,stuartarchibald/numba,jriehl/numba,gmarkall/numba,GaZ3ll3/numba,jriehl/numba,pombredanne/numba,gdementen/numba,pitrou/numba,gmarkall/numba,gmarkall/numba,ssarangi/numba,sklam/numba,sklam/numba,jriehl/numba,seibert/numba,ssarangi/numba,sklam/numba,stefanseefeld/numba,GaZ3ll3/numba,gdementen/numba,pombredanne/numba,jriehl/numba,numba/numba,numba/numba,jriehl/numba,cpcloud/numba,stonebig/numba,stefanseefeld/numba,gdementen/numba,GaZ3ll3/numba,cpcloud/numba,stuartarchibald/numba,pombredanne/numba,ssarangi/numba,IntelLabs/numba,pitrou/numba,pombredanne/numba,gmarkall/numba,gdementen/numba,stuartarchibald/numba,cpcloud/numba,pombredanne/numba,cpcloud/numba,numba/numba,sklam/numba,stefanseefeld/numba,pitrou/numba,sklam/numba,numba/numba,stuartarchibald/numba,IntelLabs/numba,stuartarchibald/numba,ssarangi/numba,stonebig/numba,IntelLabs/numba,cpcloud/numba,IntelLabs/numba,pitrou/numba,GaZ3ll3/numba,stefanseefeld/numba,stonebig/numba,gdementen/numba