TST: add tests of R2R transforms involving overwrite_x
TST: add tests of R2R transforms involving overwrite_x

nmayorov/scipy,vigna/scipy,andyfaff/scipy,person142/scipy,tylerjereddy/scipy,mdhaber/scipy,grlee77/scipy,ilayn/scipy,matthew-brett/scipy,perimosocordiae/scipy,ilayn/scipy,grlee77/scipy,scipy/scipy,endolith/scipy,zerothi/scipy,Stefan-Endres/scipy,scipy/scipy,person142/scipy,scipy/scipy,Eric89GXL/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,vigna/scipy,scipy/scipy,mdhaber/scipy,endolith/scipy,andyfaff/scipy,anntzer/scipy,vigna/scipy,scipy/scipy,matthew-brett/scipy,rgommers/scipy,Eric89GXL/scipy,anntzer/scipy,tylerjereddy/scipy,rgommers/scipy,matthew-brett/scipy,andyfaff/scipy,ilayn/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,zerothi/scipy,endolith/scipy,perimosocordiae/scipy,zerothi/scipy,andyfaff/scipy,ilayn/scipy,zerothi/scipy,anntzer/scipy,vigna/scipy,grlee77/scipy,Stefan-Endres/scipy,zerothi/scipy,pizzathief/scipy,matthew-brett/scipy,WarrenWeckesser/scipy,WarrenWeckesser/scipy,pizzathief/scipy,Eric89GXL/scipy,ilayn/scipy,andyfaff/scipy,nmayorov/scipy,Eric89GXL/scipy,e-q/scipy,e-q/scipy,nmayorov/scipy,person142/scipy,endolith/scipy,nmayorov/scipy,mdhaber/scipy,perimosocordiae/scipy,person142/scipy,mdhaber/scipy,Eric89GXL/scipy,tylerjereddy/scipy,endolith/scipy,Stefan-Endres/scipy,grlee77/scipy,WarrenWeckesser/scipy,anntzer/scipy,Stefan-Endres/scipy,e-q/scipy,mdhaber/scipy,mdhaber/scipy,WarrenWeckesser/scipy,anntzer/scipy,rgommers/scipy,tylerjereddy/scipy,grlee77/scipy,rgommers/scipy,Stefan-Endres/scipy,pizzathief/scipy,pizzathief/scipy,matthew-brett/scipy,nmayorov/scipy,rgommers/scipy,Stefan-Endres/scipy,andyfaff/scipy,Eric89GXL/scipy,person142/scipy,vigna/scipy,pizzathief/scipy,scipy/scipy,endolith/scipy,ilayn/scipy,perimosocordiae/scipy,e-q/scipy,e-q/scipy,tylerjereddy/scipy,anntzer/scipy,zerothi/scipy