Fix some warnings
Fix some warnings

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