implement FastMutInt in non-GHC using IORefs (#1405) ghc still works, also the module was tested in hugs and ghc
implement FastMutInt in non-GHC using IORefs (#1405)
ghc still works, also the module was tested in hugs and ghc

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