Give a better error for uses of R11, R12, ...; trac #5422
Give a better error for uses of R11, R12, ...; trac #5422

It's still a panic, as it wouldn't be trivial to give a proper error
at the point that we generate it, but it's now a bit nicer:
    Registers above R10 are not supported (tried to use R11)

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