TST: Promotion test (and warning filter) fixup
TST: Promotion test (and warning filter) fixup

numpy/numpy,anntzer/numpy,rgommers/numpy,charris/numpy,anntzer/numpy,charris/numpy,mhvk/numpy,endolith/numpy,charris/numpy,rgommers/numpy,mhvk/numpy,anntzer/numpy,endolith/numpy,mattip/numpy,mhvk/numpy,endolith/numpy,mhvk/numpy,rgommers/numpy,numpy/numpy,mattip/numpy,numpy/numpy,mattip/numpy,numpy/numpy,rgommers/numpy,charris/numpy,anntzer/numpy,mhvk/numpy,mattip/numpy,endolith/numpy