Small refactor
Small refactor

Moved the default case of genCCall64 out into a separate function

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