import CostCentre ( CostCentre, noCostCentre )
import Var ( Var, Id, TyVar, isTyVar, isId )
import Type ( Type, mkTyVarTy, seqType )
-import TyCon ( isNewTyCon )
import Coercion ( Coercion )
import Name ( Name )
import OccName ( OccName )
import Literal ( Literal, mkMachInt )
-import DataCon ( DataCon, dataConWorkId, dataConTag, dataConTyCon,
- dataConWrapId )
+import DataCon ( DataCon, dataConWorkId, dataConTag )
import BasicTypes ( Activation )
import FastString
import Outputable