declare stg_gc_prim and stg_killMyself (#7350)
declare stg_gc_prim and stg_killMyself (#7350)

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