Fix parenthesisation in conversion from TH.Exp to HsExpr.HsExpr
Fix parenthesisation in conversion from TH.Exp to HsExpr.HsExpr

We need to generate enough parens so that -ddump-splices is
correct Haskell.  There is certainly further to go.

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