TST: Check invalid dtypes comparison
TST: Check invalid dtypes comparison

pdebuyl/numpy,mhvk/numpy,mattip/numpy,mattip/numpy,numpy/numpy,seberg/numpy,seberg/numpy,numpy/numpy,numpy/numpy,charris/numpy,endolith/numpy,seberg/numpy,mhvk/numpy,simongibbons/numpy,anntzer/numpy,rgommers/numpy,mattip/numpy,jakirkham/numpy,endolith/numpy,charris/numpy,anntzer/numpy,endolith/numpy,numpy/numpy,charris/numpy,mattip/numpy,anntzer/numpy,rgommers/numpy,anntzer/numpy,seberg/numpy,endolith/numpy,jakirkham/numpy,rgommers/numpy,pdebuyl/numpy,simongibbons/numpy,simongibbons/numpy,jakirkham/numpy,pdebuyl/numpy,mhvk/numpy,pdebuyl/numpy,jakirkham/numpy,simongibbons/numpy,mhvk/numpy,mhvk/numpy,simongibbons/numpy,jakirkham/numpy,rgommers/numpy,charris/numpy