Fixing problem with default mangled name being None in pipeline.
Fixing problem with default mangled name being None in pipeline.

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