Check the calling convention of foreign imported labels is supported
Check the calling convention of foreign imported labels is supported

Fixes 2276_ghci on Win64

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