refactor find_callname_intrinsic test
refactor find_callname_intrinsic test

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