BUG: sparse/lil: more robust _slicetoseq implementation
BUG: sparse/lil: more robust _slicetoseq implementation

The current failed for negative strides + start point past the end.

anielsen001/scipy,richardotis/scipy,ChanderG/scipy,ortylp/scipy,pyramania/scipy,befelix/scipy,woodscn/scipy,haudren/scipy,gdooper/scipy,raoulbq/scipy,chatcannon/scipy,vigna/scipy,petebachant/scipy,sauliusl/scipy,njwilson23/scipy,bkendzior/scipy,chatcannon/scipy,sargas/scipy,zerothi/scipy,witcxc/scipy,jonycgn/scipy,anntzer/scipy,Newman101/scipy,ogrisel/scipy,perimosocordiae/scipy,fredrikw/scipy,rmcgibbo/scipy,mortada/scipy,endolith/scipy,kalvdans/scipy,maniteja123/scipy,gfyoung/scipy,aarchiba/scipy,kleskjr/scipy,kleskjr/scipy,pizzathief/scipy,zerothi/scipy,mgaitan/scipy,sargas/scipy,raoulbq/scipy,trankmichael/scipy,gertingold/scipy,trankmichael/scipy,woodscn/scipy,hainm/scipy,gertingold/scipy,tylerjereddy/scipy,ChanderG/scipy,fredrikw/scipy,hainm/scipy,argriffing/scipy,Dapid/scipy,ilayn/scipy,matthewalbani/scipy,newemailjdm/scipy,newemailjdm/scipy,endolith/scipy,Gillu13/scipy,andyfaff/scipy,gfyoung/scipy,sriki18/scipy,cpaulik/scipy,juliantaylor/scipy,vanpact/scipy,ortylp/scipy,befelix/scipy,cpaulik/scipy,aarchiba/scipy,gdooper/scipy,raoulbq/scipy,WarrenWeckesser/scipy,hainm/scipy,haudren/scipy,Eric89GXL/scipy,jakevdp/scipy,niknow/scipy,perimosocordiae/scipy,minhlongdo/scipy,mikebenfield/scipy,andyfaff/scipy,dominicelse/scipy,juliantaylor/scipy,raoulbq/scipy,anielsen001/scipy,person142/scipy,vberaudi/scipy,e-q/scipy,aarchiba/scipy,gertingold/scipy,zxsted/scipy,larsmans/scipy,ogrisel/scipy,rmcgibbo/scipy,FRidh/scipy,jseabold/scipy,person142/scipy,jseabold/scipy,scipy/scipy,pizzathief/scipy,Dapid/scipy,fredrikw/scipy,sriki18/scipy,mhogg/scipy,sargas/scipy,giorgiop/scipy,pnedunuri/scipy,e-q/scipy,haudren/scipy,richardotis/scipy,josephcslater/scipy,lhilt/scipy,surhudm/scipy,larsmans/scipy,apbard/scipy,niknow/scipy,ilayn/scipy,ndchorley/scipy,Srisai85/scipy,matthewalbani/scipy,vanpact/scipy,grlee77/scipy,matthew-brett/scipy,zaxliu/scipy,sriki18/scipy,felipebetancur/scipy,petebachant/scipy,josephcslater/scipy,maniteja123/scipy,ilayn/scipy,anielsen001/scipy,apbard/scipy,Eric89GXL/scipy,giorgiop/scipy,futurulus/scipy,aeklant/scipy,gfyoung/scipy,lukauskas/scipy,cpaulik/scipy,ndchorley/scipy,rmcgibbo/scipy,pizzathief/scipy,trankmichael/scipy,futurulus/scipy,jseabold/scipy,Shaswat27/scipy,perimosocordiae/scipy,vberaudi/scipy,ortylp/scipy,piyush0609/scipy,Srisai85/scipy,matthew-brett/scipy,Srisai85/scipy,chatcannon/scipy,jjhelmus/scipy,jonycgn/scipy,nvoron23/scipy,anntzer/scipy,Newman101/scipy,matthewalbani/scipy,gef756/scipy,zerothi/scipy,andyfaff/scipy,lukauskas/scipy,pbrod/scipy,Shaswat27/scipy,arokem/scipy,mtrbean/scipy,pschella/scipy,zxsted/scipy,scipy/scipy,jsilter/scipy,sriki18/scipy,jor-/scipy,richardotis/scipy,maniteja123/scipy,niknow/scipy,jjhelmus/scipy,newemailjdm/scipy,raoulbq/scipy,sonnyhu/scipy,Eric89GXL/scipy,behzadnouri/scipy,cpaulik/scipy,ndchorley/scipy,jseabold/scipy,anntzer/scipy,jor-/scipy,mdhaber/scipy,Stefan-Endres/scipy,gef756/scipy,aman-iitj/scipy,minhlongdo/scipy,sargas/scipy,anielsen001/scipy,gfyoung/scipy,Gillu13/scipy,felipebetancur/scipy,Dapid/scipy,chatcannon/scipy,lhilt/scipy,FRidh/scipy,dch312/scipy,haudren/scipy,bkendzior/scipy,mdhaber/scipy,pnedunuri/scipy,behzadnouri/scipy,nmayorov/scipy,mortonjt/scipy,ortylp/scipy,kleskjr/scipy,efiring/scipy,sonnyhu/scipy,jonycgn/scipy,jjhelmus/scipy,behzadnouri/scipy,jamestwebber/scipy,jakevdp/scipy,andim/scipy,aman-iitj/scipy,mtrbean/scipy,behzadnouri/scipy,Dapid/scipy,pschella/scipy,scipy/scipy,mingwpy/scipy,Eric89GXL/scipy,WarrenWeckesser/scipy,petebachant/scipy,Gillu13/scipy,jsilter/scipy,Dapid/scipy,jamestwebber/scipy,mgaitan/scipy,lhilt/scipy,Kamp9/scipy,rmcgibbo/scipy,apbard/scipy,mhogg/scipy,futurulus/scipy,petebachant/scipy,mgaitan/scipy,FRidh/scipy,gdooper/scipy,befelix/scipy,ales-erjavec/scipy,cpaulik/scipy,lukauskas/scipy,rmcgibbo/scipy,aman-iitj/scipy,piyush0609/scipy,perimosocordiae/scipy,felipebetancur/scipy,juliantaylor/scipy,njwilson23/scipy,njwilson23/scipy,giorgiop/scipy,mortada/scipy,njwilson23/scipy,Newman101/scipy,mdhaber/scipy,rgommers/scipy,njwilson23/scipy,maciejkula/scipy,jakevdp/scipy,fernand/scipy,WillieMaddox/scipy,larsmans/scipy,FRidh/scipy,Shaswat27/scipy,Newman101/scipy,witcxc/scipy,vhaasteren/scipy,efiring/scipy,gef756/scipy,FRidh/scipy,piyush0609/scipy,vberaudi/scipy,zxsted/scipy,scipy/scipy,gertingold/scipy,scipy/scipy,ales-erjavec/scipy,ortylp/scipy,ales-erjavec/scipy,matthew-brett/scipy,gdooper/scipy,ChanderG/scipy,vigna/scipy,fredrikw/scipy,fredrikw/scipy,efiring/scipy,sauliusl/scipy,minhlongdo/scipy,surhudm/scipy,vanpact/scipy,Gillu13/scipy,behzadnouri/scipy,felipebetancur/scipy,trankmichael/scipy,pyramania/scipy,lhilt/scipy,piyush0609/scipy,sonnyhu/scipy,maciejkula/scipy,sauliusl/scipy,mikebenfield/scipy,maniteja123/scipy,dch312/scipy,fernand/scipy,surhudm/scipy,mortada/scipy,piyush0609/scipy,kleskjr/scipy,zerothi/scipy,mhogg/scipy,pschella/scipy,mortonjt/scipy,woodscn/scipy,anntzer/scipy,raoulbq/scipy,mgaitan/scipy,Eric89GXL/scipy,gfyoung/scipy,ChanderG/scipy,pschella/scipy,maciejkula/scipy,vberaudi/scipy,newemailjdm/scipy,Kamp9/scipy,Stefan-Endres/scipy,tylerjereddy/scipy,ndchorley/scipy,grlee77/scipy,kalvdans/scipy,anielsen001/scipy,woodscn/scipy,andim/scipy,jamestwebber/scipy,pyramania/scipy,vhaasteren/scipy,fredrikw/scipy,mtrbean/scipy,jjhelmus/scipy,jjhelmus/scipy,maniteja123/scipy,Stefan-Endres/scipy,ales-erjavec/scipy,mtrbean/scipy,mhogg/scipy,sonnyhu/scipy,mdhaber/scipy,Gillu13/scipy,matthew-brett/scipy,matthew-brett/scipy,pbrod/scipy,vhaasteren/scipy,fernand/scipy,minhlongdo/scipy,cpaulik/scipy,minhlongdo/scipy,Kamp9/scipy,lukauskas/scipy,pbrod/scipy,mingwpy/scipy,WarrenWeckesser/scipy,pnedunuri/scipy,zaxliu/scipy,haudren/scipy,niknow/scipy,apbard/scipy,zaxliu/scipy,person142/scipy,ndchorley/scipy,ales-erjavec/scipy,sonnyhu/scipy,sonnyhu/scipy,rgommers/scipy,ogrisel/scipy,trankmichael/scipy,andim/scipy,endolith/scipy,person142/scipy,vigna/scipy,giorgiop/scipy,perimosocordiae/scipy,jseabold/scipy,argriffing/scipy,ndchorley/scipy,mdhaber/scipy,jsilter/scipy,pyramania/scipy,andyfaff/scipy,nvoron23/scipy,aeklant/scipy,grlee77/scipy,giorgiop/scipy,arokem/scipy,ogrisel/scipy,mikebenfield/scipy,scipy/scipy,dch312/scipy,pbrod/scipy,nvoron23/scipy,petebachant/scipy,dominicelse/scipy,argriffing/scipy,Kamp9/scipy,zxsted/scipy,futurulus/scipy,vhaasteren/scipy,pizzathief/scipy,vanpact/scipy,ChanderG/scipy,ilayn/scipy,tylerjereddy/scipy,apbard/scipy,andyfaff/scipy,Gillu13/scipy,lukauskas/scipy,haudren/scipy,kleskjr/scipy,futurulus/scipy,zerothi/scipy,efiring/scipy,maniteja123/scipy,anielsen001/scipy,hainm/scipy,nonhermitian/scipy,WillieMaddox/scipy,petebachant/scipy,kalvdans/scipy,mortada/scipy,mikebenfield/scipy,grlee77/scipy,anntzer/scipy,mingwpy/scipy,gertingold/scipy,jakevdp/scipy,mingwpy/scipy,njwilson23/scipy,e-q/scipy,dch312/scipy,juliantaylor/scipy,Dapid/scipy,Shaswat27/scipy,rgommers/scipy,woodscn/scipy,piyush0609/scipy,mingwpy/scipy,bkendzior/scipy,surhudm/scipy,ChanderG/scipy,grlee77/scipy,anntzer/scipy,mortonjt/scipy,Kamp9/scipy,nmayorov/scipy,richardotis/scipy,vigna/scipy,mgaitan/scipy,rgommers/scipy,arokem/scipy,jor-/scipy,endolith/scipy,vigna/scipy,WillieMaddox/scipy,Shaswat27/scipy,newemailjdm/scipy,WillieMaddox/scipy,nvoron23/scipy,mortonjt/scipy,sriki18/scipy,nonhermitian/scipy,Srisai85/scipy,sriki18/scipy,jsilter/scipy,jsilter/scipy,ilayn/scipy,Srisai85/scipy,larsmans/scipy,andim/scipy,aman-iitj/scipy,felipebetancur/scipy,pnedunuri/scipy,dch312/scipy,person142/scipy,andyfaff/scipy,gdooper/scipy,Stefan-Endres/scipy,tylerjereddy/scipy,mtrbean/scipy,mortada/scipy,vanpact/scipy,lukauskas/scipy,andim/scipy,niknow/scipy,vberaudi/scipy,ales-erjavec/scipy,jonycgn/scipy,zxsted/scipy,mhogg/scipy,mhogg/scipy,mortonjt/scipy,kleskjr/scipy,aeklant/scipy,pizzathief/scipy,jonycgn/scipy,jor-/scipy,dominicelse/scipy,jamestwebber/scipy,witcxc/scipy,nmayorov/scipy,WarrenWeckesser/scipy,vanpact/scipy,pyramania/scipy,Newman101/scipy,zaxliu/scipy,felipebetancur/scipy,mingwpy/scipy,bkendzior/scipy,witcxc/scipy,WillieMaddox/scipy,jonycgn/scipy,trankmichael/scipy,befelix/scipy,minhlongdo/scipy,futurulus/scipy,jamestwebber/scipy,Stefan-Endres/scipy,dominicelse/scipy,aman-iitj/scipy,nvoron23/scipy,nonhermitian/scipy,argriffing/scipy,niknow/scipy,FRidh/scipy,argriffing/scipy,newemailjdm/scipy,nmayorov/scipy,mdhaber/scipy,vhaasteren/scipy,gef756/scipy,surhudm/scipy,richardotis/scipy,vberaudi/scipy,rmcgibbo/scipy,aarchiba/scipy,e-q/scipy,zxsted/scipy,behzadnouri/scipy,aeklant/scipy,lhilt/scipy,fernand/scipy,Srisai85/scipy,WarrenWeckesser/scipy,jakevdp/scipy,aeklant/scipy,hainm/scipy,maciejkula/scipy,efiring/scipy,ogrisel/scipy,pbrod/scipy,endolith/scipy,witcxc/scipy,dominicelse/scipy,mtrbean/scipy,sauliusl/scipy,nvoron23/scipy,Shaswat27/scipy,surhudm/scipy,larsmans/scipy,matthewalbani/scipy,Eric89GXL/scipy,bkendzior/scipy,sauliusl/scipy,mgaitan/scipy,zaxliu/scipy,aman-iitj/scipy,josephcslater/scipy,Newman101/scipy,WarrenWeckesser/scipy,zaxliu/scipy,e-q/scipy,matthewalbani/scipy,ilayn/scipy,sargas/scipy,arokem/scipy,Kamp9/scipy,ortylp/scipy,nonhermitian/scipy,fernand/scipy,nonhermitian/scipy,larsmans/scipy,rgommers/scipy,josephcslater/scipy,pbrod/scipy,arokem/scipy,woodscn/scipy,sauliusl/scipy,vhaasteren/scipy,aarchiba/scipy,giorgiop/scipy,mortonjt/scipy,jor-/scipy,kalvdans/scipy,pnedunuri/scipy,mikebenfield/scipy,pnedunuri/scipy,perimosocordiae/scipy,chatcannon/scipy,mortada/scipy,befelix/scipy,WillieMaddox/scipy,juliantaylor/scipy,Stefan-Endres/scipy,gef756/scipy,hainm/scipy,andim/scipy,richardotis/scipy,josephcslater/scipy,chatcannon/scipy,fernand/scipy,argriffing/scipy,jseabold/scipy,zerothi/scipy,tylerjereddy/scipy,efiring/scipy,nmayorov/scipy,maciejkula/scipy,endolith/scipy,gef756/scipy,pschella/scipy,kalvdans/scipy