TST: Added cases for better coverage of ediff1d
TST: Added cases for better coverage of ediff1d

MSeifert04/numpy,gfyoung/numpy,madphysicist/numpy,b-carter/numpy,chatcannon/numpy,rgommers/numpy,shoyer/numpy,mhvk/numpy,bringingheavendown/numpy,abalkin/numpy,maniteja123/numpy,Eric89GXL/numpy,ddasilva/numpy,pbrod/numpy,WarrenWeckesser/numpy,madphysicist/numpy,ContinuumIO/numpy,solarjoe/numpy,pizzathief/numpy,charris/numpy,shoyer/numpy,endolith/numpy,ContinuumIO/numpy,pbrod/numpy,jorisvandenbossche/numpy,pdebuyl/numpy,mattip/numpy,stuarteberg/numpy,WarrenWeckesser/numpy,chatcannon/numpy,MSeifert04/numpy,behzadnouri/numpy,endolith/numpy,njase/numpy,jakirkham/numpy,bertrand-l/numpy,anntzer/numpy,pdebuyl/numpy,anntzer/numpy,abalkin/numpy,jakirkham/numpy,madphysicist/numpy,endolith/numpy,b-carter/numpy,bertrand-l/numpy,MSeifert04/numpy,ssanderson/numpy,mhvk/numpy,ddasilva/numpy,mattip/numpy,grlee77/numpy,bringingheavendown/numpy,grlee77/numpy,utke1/numpy,maniteja123/numpy,seberg/numpy,behzadnouri/numpy,solarjoe/numpy,stuarteberg/numpy,madphysicist/numpy,madphysicist/numpy,pdebuyl/numpy,Eric89GXL/numpy,mhvk/numpy,seberg/numpy,WarrenWeckesser/numpy,numpy/numpy,grlee77/numpy,pbrod/numpy,njase/numpy,rgommers/numpy,tynn/numpy,tynn/numpy,mhvk/numpy,simongibbons/numpy,endolith/numpy,rgommers/numpy,b-carter/numpy,Eric89GXL/numpy,tynn/numpy,jorisvandenbossche/numpy,ahaldane/numpy,abalkin/numpy,mattip/numpy,anntzer/numpy,grlee77/numpy,stuarteberg/numpy,ddasilva/numpy,pizzathief/numpy,ssanderson/numpy,WarrenWeckesser/numpy,numpy/numpy,ahaldane/numpy,ahaldane/numpy,grlee77/numpy,charris/numpy,ContinuumIO/numpy,utke1/numpy,pizzathief/numpy,njase/numpy,pbrod/numpy,bringingheavendown/numpy,rgommers/numpy,bertrand-l/numpy,pbrod/numpy,ssanderson/numpy,Eric89GXL/numpy,charris/numpy,seberg/numpy,gfyoung/numpy,jakirkham/numpy,behzadnouri/numpy,mattip/numpy,charris/numpy,jakirkham/numpy,jorisvandenbossche/numpy,MSeifert04/numpy,shoyer/numpy,MSeifert04/numpy,anntzer/numpy,pdebuyl/numpy,WarrenWeckesser/numpy,shoyer/numpy,ahaldane/numpy,shoyer/numpy,numpy/numpy,jorisvandenbossche/numpy,maniteja123/numpy,gfyoung/numpy,chatcannon/numpy,simongibbons/numpy,utke1/numpy,seberg/numpy,simongibbons/numpy,simongibbons/numpy,mhvk/numpy,jakirkham/numpy,simongibbons/numpy,pizzathief/numpy,ahaldane/numpy,jorisvandenbossche/numpy,stuarteberg/numpy,solarjoe/numpy,pizzathief/numpy,numpy/numpy