import Var
import IdInfo
import Coercion
-import DataCon ( dataConTyCon, dataConRepStrictness, dataConUnivTyVars )
-import TyCon ( tyConArity )
+import DataCon ( dataConRepStrictness, dataConUnivTyVars )
import CoreSyn
import NewDemand ( isStrictDmd )
import PprCore ( pprParendExpr, pprCoreExpr )