Use runTcSDeriveds for simplifyDefault
Use runTcSDeriveds for simplifyDefault

This is a small refactoring, no change in behaviour.

mettekou/ghc,shlevy/ghc,oldmanmike/ghc,vTurbine/ghc,olsner/ghc,shlevy/ghc,mettekou/ghc,sgillespie/ghc,mettekou/ghc,sgillespie/ghc,olsner/ghc,vikraman/ghc,olsner/ghc,mcschroeder/ghc,ezyang/ghc,vikraman/ghc,sdiehl/ghc,tjakway/ghcjvm,vTurbine/ghc,sdiehl/ghc,snoyberg/ghc,mettekou/ghc,ezyang/ghc,vikraman/ghc,shlevy/ghc,oldmanmike/ghc,oldmanmike/ghc,tjakway/ghcjvm,sdiehl/ghc,sgillespie/ghc,shlevy/ghc,vTurbine/ghc,olsner/ghc,sgillespie/ghc,oldmanmike/ghc,mcschroeder/ghc,sgillespie/ghc,mcschroeder/ghc,tjakway/ghcjvm,snoyberg/ghc,vikraman/ghc,mettekou/ghc,sdiehl/ghc,ezyang/ghc,shlevy/ghc,vTurbine/ghc,sgillespie/ghc,tjakway/ghcjvm,snoyberg/ghc,shlevy/ghc,mcschroeder/ghc,ezyang/ghc,ezyang/ghc,snoyberg/ghc,sdiehl/ghc,vTurbine/ghc,tjakway/ghcjvm,vTurbine/ghc,mettekou/ghc,snoyberg/ghc,vikraman/ghc,oldmanmike/ghc,olsner/ghc,tjakway/ghcjvm,oldmanmike/ghc,ezyang/ghc,olsner/ghc,olsner/ghc,tjakway/ghcjvm,mcschroeder/ghc,sdiehl/ghc,snoyberg/ghc,mcschroeder/ghc,shlevy/ghc,vikraman/ghc,oldmanmike/ghc,vTurbine/ghc,ezyang/ghc,sgillespie/ghc,sdiehl/ghc,snoyberg/ghc,vikraman/ghc,mettekou/ghc,mcschroeder/ghc