Fix stage1 warnings
Fix stage1 warnings

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