-import VarSet ( varSetElems )
-import Literal ( literalType )
-import Maybes ( catMaybes )
-import Name ( isExternalName )
-import StgSyn ( StgArg, StgLiveVars, GenStgArg(..), isStgTypeArg )
-import Unique ( Uniquable(..) )
-import UniqSet ( elementOfUniqSet )