Do not split void functions
Do not split void functions

This is authored by SPJ, and split out out "Improve the handling of
used-once stuff" by Joachim.

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