import Id ( Id, idType )
import VarEnv
import CoreLint ( beginPass, endPass )
-import PprCore
import SetLevels ( setLevels,
Level(..), tOP_LEVEL, ltMajLvl, ltLvl, isTopLvl
)
-import BasicTypes ( Unused )
import Type ( isUnLiftedType )
import Var ( TyVar )
import UniqSupply ( UniqSupply )