Fix undefined GHC.Real export with integer-simple
Fix undefined GHC.Real export with integer-simple

Test Plan: Check that GHC.Real compiles without OPTIMISE_INTEGER_GCD_LCM nor MIN_VERSION_integer_gmp defined.

Reviewers: carter, ezyang, erikd, hvr, dfeuer, austin

Reviewed By: erikd, hvr, dfeuer, austin

Subscribers: erikd, dfeuer, carter, thomie

Differential Revision: https://phabricator.haskell.org/D600

anton-dessiatov/ghc,gcampax/ghc,da-x/ghc,tjakway/ghcjvm,olsner/ghc,ezyang/ghc,mcschroeder/ghc,TomMD/ghc,snoyberg/ghc,christiaanb/ghc,urbanslug/ghc,shlevy/ghc,shlevy/ghc,siddhanathan/ghc,GaloisInc/halvm-ghc,siddhanathan/ghc,nushio3/ghc,elieux/ghc,shlevy/ghc,da-x/ghc,sgillespie/ghc,vikraman/ghc,wxwxwwxxx/ghc,ezyang/ghc,gridaphobe/ghc,mettekou/ghc,sdiehl/ghc,sdiehl/ghc,TomMD/ghc,acowley/ghc,christiaanb/ghc,ghc-android/ghc,olsner/ghc,AlexanderPankiv/ghc,siddhanathan/ghc,fmthoma/ghc,christiaanb/ghc,gcampax/ghc,nkaretnikov/ghc,da-x/ghc,vikraman/ghc,vikraman/ghc,nushio3/ghc,ezyang/ghc,ezyang/ghc,vikraman/ghc,fmthoma/ghc,ezyang/ghc,urbanslug/ghc,GaloisInc/halvm-ghc,mcschroeder/ghc,oldmanmike/ghc,ezyang/ghc,elieux/ghc,AlexanderPankiv/ghc,elieux/ghc,anton-dessiatov/ghc,mettekou/ghc,green-haskell/ghc,ghc-android/ghc,urbanslug/ghc,green-haskell/ghc,elieux/ghc,snoyberg/ghc,ghc-android/ghc,sgillespie/ghc,sgillespie/ghc,gcampax/ghc,siddhanathan/ghc,wxwxwwxxx/ghc,shlevy/ghc,AlexanderPankiv/ghc,anton-dessiatov/ghc,ml9951/ghc,AlexanderPankiv/ghc,mcschroeder/ghc,oldmanmike/ghc,vTurbine/ghc,ghc-android/ghc,shlevy/ghc,mcschroeder/ghc,sdiehl/ghc,fmthoma/ghc,mettekou/ghc,sgillespie/ghc,gcampax/ghc,mettekou/ghc,mfine/ghc,siddhanathan/ghc,mcschroeder/ghc,tjakway/ghcjvm,ml9951/ghc,siddhanathan/ghc,snoyberg/ghc,ezyang/ghc,mettekou/ghc,da-x/ghc,urbanslug/ghc,sgillespie/ghc,tjakway/ghcjvm,nushio3/ghc,snoyberg/ghc,ml9951/ghc,nushio3/ghc,snoyberg/ghc,nushio3/ghc,GaloisInc/halvm-ghc,TomMD/ghc,sdiehl/ghc,shlevy/ghc,mfine/ghc,christiaanb/ghc,vTurbine/ghc,acowley/ghc,nkaretnikov/ghc,GaloisInc/halvm-ghc,mcschroeder/ghc,mfine/ghc,mfine/ghc,vTurbine/ghc,AlexanderPankiv/ghc,da-x/ghc,nkaretnikov/ghc,ml9951/ghc,GaloisInc/halvm-ghc,olsner/ghc,ml9951/ghc,urbanslug/ghc,nkaretnikov/ghc,ml9951/ghc,ml9951/ghc,urbanslug/ghc,gridaphobe/ghc,christiaanb/ghc,gridaphobe/ghc,sdiehl/ghc,wxwxwwxxx/ghc,TomMD/ghc,tjakway/ghcjvm,nkaretnikov/ghc,vikraman/ghc,ghc-android/ghc,olsner/ghc,ghc-android/ghc,da-x/ghc,nushio3/ghc,da-x/ghc,TomMD/ghc,olsner/ghc,gridaphobe/ghc,acowley/ghc,AlexanderPankiv/ghc,GaloisInc/halvm-ghc,gcampax/ghc,anton-dessiatov/ghc,elieux/ghc,vikraman/ghc,fmthoma/ghc,gcampax/ghc,mfine/ghc,vikraman/ghc,vTurbine/ghc,wxwxwwxxx/ghc,olsner/ghc,anton-dessiatov/ghc,acowley/ghc,christiaanb/ghc,nushio3/ghc,gridaphobe/ghc,gridaphobe/ghc,sdiehl/ghc,sdiehl/ghc,gridaphobe/ghc,ml9951/ghc,sgillespie/ghc,AlexanderPankiv/ghc,wxwxwwxxx/ghc,snoyberg/ghc,nkaretnikov/ghc,oldmanmike/ghc,oldmanmike/ghc,oldmanmike/ghc,mfine/ghc,acowley/ghc,oldmanmike/ghc,acowley/ghc,siddhanathan/ghc,green-haskell/ghc,vTurbine/ghc,GaloisInc/halvm-ghc,vTurbine/ghc,gcampax/ghc,mettekou/ghc,mfine/ghc,tjakway/ghcjvm,tjakway/ghcjvm,acowley/ghc,shlevy/ghc,anton-dessiatov/ghc,TomMD/ghc,christiaanb/ghc,olsner/ghc,vTurbine/ghc,ghc-android/ghc,wxwxwwxxx/ghc,nkaretnikov/ghc,tjakway/ghcjvm,elieux/ghc,elieux/ghc,mettekou/ghc,fmthoma/ghc,sgillespie/ghc,anton-dessiatov/ghc,green-haskell/ghc,TomMD/ghc,mcschroeder/ghc,urbanslug/ghc,fmthoma/ghc,green-haskell/ghc,fmthoma/ghc,snoyberg/ghc,oldmanmike/ghc,wxwxwwxxx/ghc