User's Guide: Fix compiler plugin example (#9641, #7682)
User's Guide: Fix compiler plugin example (#9641, #7682)

The previous fix was incorrectly eta-reduced.

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