Make the demand analyser sdd demands for strict constructors
Make the demand analyser sdd demands for strict constructors

This opportunity was spotted by Roman, and is documented in 
Note [Add demands for strict constructors] in DmdAnal.

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