Fix Trac #3261: make default types play nice with -Werror
Fix Trac #3261: make default types play nice with -Werror

The trial-and-error for type defaults was not playing nicely with
-Werror. The fix is simple.


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