Make 5558 portable by replacing seq with python code (#5558)
Make 5558 portable by replacing seq with python code (#5558)

ezyang/ghc,vTurbine/ghc,fmthoma/ghc,ghc-android/ghc,GaloisInc/halvm-ghc,acowley/ghc,TomMD/ghc,shlevy/ghc,lukexi/ghc,nathyong/microghc-ghc,lukexi/ghc,fmthoma/ghc,tibbe/ghc,sgillespie/ghc,gridaphobe/ghc,elieux/ghc,shlevy/ghc,AlexanderPankiv/ghc,sgillespie/ghc,nathyong/microghc-ghc,TomMD/ghc,ml9951/ghc,wxwxwwxxx/ghc,mfine/ghc,spacekitteh/smcghc,gcampax/ghc,vTurbine/ghc,mettekou/ghc,gcampax/ghc,urbanslug/ghc,lukexi/ghc-7.8-arm64,acowley/ghc,vTurbine/ghc,forked-upstream-packages-for-ghcjs/ghc,shlevy/ghc,holzensp/ghc,mcschroeder/ghc,AlexanderPankiv/ghc,TomMD/ghc,vikraman/ghc,AlexanderPankiv/ghc,gridaphobe/ghc,sgillespie/ghc,olsner/ghc,urbanslug/ghc,jstolarek/ghc,oldmanmike/ghc,siddhanathan/ghc,nathyong/microghc-ghc,GaloisInc/halvm-ghc,elieux/ghc,anton-dessiatov/ghc,acowley/ghc,nkaretnikov/ghc,sdiehl/ghc,spacekitteh/smcghc,spacekitteh/smcghc,ezyang/ghc,lukexi/ghc-7.8-arm64,forked-upstream-packages-for-ghcjs/ghc,mettekou/ghc,mfine/ghc,gridaphobe/ghc,ezyang/ghc,ezyang/ghc,vTurbine/ghc,elieux/ghc,fmthoma/ghc,tjakway/ghcjvm,da-x/ghc,christiaanb/ghc,tibbe/ghc,vTurbine/ghc,holzensp/ghc,green-haskell/ghc,holzensp/ghc,snoyberg/ghc,wxwxwwxxx/ghc,acowley/ghc,bitemyapp/ghc,oldmanmike/ghc,gcampax/ghc,forked-upstream-packages-for-ghcjs/ghc,vTurbine/ghc,mfine/ghc,elieux/ghc,ghc-android/ghc,siddhanathan/ghc,mcschroeder/ghc,ml9951/ghc,siddhanathan/ghc,acowley/ghc,tjakway/ghcjvm,sdiehl/ghc,oldmanmike/ghc,urbanslug/ghc,da-x/ghc,fmthoma/ghc,lukexi/ghc-7.8-arm64,ryantm/ghc,mfine/ghc,GaloisInc/halvm-ghc,tjakway/ghcjvm,gridaphobe/ghc,fmthoma/ghc,siddhanathan/ghc,gcampax/ghc,da-x/ghc,nkaretnikov/ghc,nathyong/microghc-ghc,oldmanmike/ghc,fmthoma/ghc,frantisekfarka/ghc-dsi,ezyang/ghc,frantisekfarka/ghc-dsi,nkaretnikov/ghc,fmthoma/ghc,nkaretnikov/ghc,anton-dessiatov/ghc,gridaphobe/ghc,hferreiro/replay,urbanslug/ghc,olsner/ghc,sdiehl/ghc,ghc-android/ghc,lukexi/ghc,sgillespie/ghc,hferreiro/replay,ml9951/ghc,christiaanb/ghc,spacekitteh/smcghc,bitemyapp/ghc,nushio3/ghc,nathyong/microghc-ghc,ml9951/ghc,vikraman/ghc,urbanslug/ghc,TomMD/ghc,mettekou/ghc,green-haskell/ghc,bitemyapp/ghc,nathyong/microghc-ghc,jstolarek/ghc,mettekou/ghc,bitemyapp/ghc,ezyang/ghc,urbanslug/ghc,anton-dessiatov/ghc,da-x/ghc,nathyong/microghc-ghc,GaloisInc/halvm-ghc,TomMD/ghc,ghc-android/ghc,ghc-android/ghc,ryantm/ghc,nushio3/ghc,sgillespie/ghc,jstolarek/ghc,AlexanderPankiv/ghc,wxwxwwxxx/ghc,tibbe/ghc,gridaphobe/ghc,AlexanderPankiv/ghc,ghc-android/ghc,mcschroeder/ghc,snoyberg/ghc,siddhanathan/ghc,sdiehl/ghc,gridaphobe/ghc,hferreiro/replay,hferreiro/replay,ryantm/ghc,ghc-android/ghc,christiaanb/ghc,christiaanb/ghc,vikraman/ghc,frantisekfarka/ghc-dsi,acowley/ghc,siddhanathan/ghc,green-haskell/ghc,mettekou/ghc,mettekou/ghc,forked-upstream-packages-for-ghcjs/ghc,elieux/ghc,ryantm/ghc,oldmanmike/ghc,shlevy/ghc,bitemyapp/ghc,elieux/ghc,ml9951/ghc,nushio3/ghc,lukexi/ghc,shlevy/ghc,TomMD/ghc,nkaretnikov/ghc,frantisekfarka/ghc-dsi,olsner/ghc,TomMD/ghc,GaloisInc/halvm-ghc,nushio3/ghc,wxwxwwxxx/ghc,urbanslug/ghc,holzensp/ghc,anton-dessiatov/ghc,sgillespie/ghc,nushio3/ghc,tibbe/ghc,snoyberg/ghc,snoyberg/ghc,gcampax/ghc,lukexi/ghc,wxwxwwxxx/ghc,olsner/ghc,oldmanmike/ghc,hferreiro/replay,hferreiro/replay,anton-dessiatov/ghc,gcampax/ghc,hferreiro/replay,sgillespie/ghc,ml9951/ghc,forked-upstream-packages-for-ghcjs/ghc,nushio3/ghc,snoyberg/ghc,tjakway/ghcjvm,snoyberg/ghc,green-haskell/ghc,nkaretnikov/ghc,mettekou/ghc,mfine/ghc,da-x/ghc,olsner/ghc,GaloisInc/halvm-ghc,olsner/ghc,tjakway/ghcjvm,jstolarek/ghc,AlexanderPankiv/ghc,ezyang/ghc,tibbe/ghc,wxwxwwxxx/ghc,mfine/ghc,forked-upstream-packages-for-ghcjs/ghc,nushio3/ghc,green-haskell/ghc,lukexi/ghc-7.8-arm64,elieux/ghc,ml9951/ghc,sdiehl/ghc,mcschroeder/ghc,GaloisInc/halvm-ghc,tjakway/ghcjvm,ml9951/ghc,vikraman/ghc,christiaanb/ghc,siddhanathan/ghc,mcschroeder/ghc,forked-upstream-packages-for-ghcjs/ghc,vikraman/ghc,anton-dessiatov/ghc,vikraman/ghc,mcschroeder/ghc,jstolarek/ghc,acowley/ghc,ryantm/ghc,shlevy/ghc,christiaanb/ghc,holzensp/ghc,AlexanderPankiv/ghc,vikraman/ghc,spacekitteh/smcghc,mcschroeder/ghc,sdiehl/ghc,wxwxwwxxx/ghc,anton-dessiatov/ghc,nkaretnikov/ghc,frantisekfarka/ghc-dsi,oldmanmike/ghc,olsner/ghc,shlevy/ghc,lukexi/ghc-7.8-arm64,christiaanb/ghc,sdiehl/ghc,mfine/ghc,snoyberg/ghc,tjakway/ghcjvm,da-x/ghc,da-x/ghc,vTurbine/ghc,gcampax/ghc