Fix unused-matches warnings in CmmLex.x
Fix unused-matches warnings in CmmLex.x

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