Improve docs for unsafeCoerce Make it clear that compilers differ.  Point to GHC docs in GHC.Base, and add a short description of nhc98's representation-safe conversions.
Improve docs for unsafeCoerce
Make it clear that compilers differ.  Point to GHC docs in GHC.Base, and
add a short description of nhc98's representation-safe conversions.

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