import Var ( TyVar, mkSysTyVar )
import Name ( Name )
import PrimRep ( PrimRep(..) )
-import TyCon ( TyCon, ArgVrcs, mkPrimTyCon )
+import TyCon ( TyCon, ArgVrcs, mkPrimTyCon, mkLiftedPrimTyCon )
import Type ( mkTyConApp, mkTyConTy, mkTyVarTys, mkTyVarTy,
unliftedTypeKind, liftedTypeKind, openTypeKind, mkArrowKinds
)
RealWorld; it's only used in the type system, to parameterise State#.
\begin{code}
-realWorldTyCon = mkPrimTyCon realWorldTyConName liftedTypeKind 0 [] PrimPtrRep
+realWorldTyCon = mkLiftedPrimTyCon realWorldTyConName liftedTypeKind 0 [] PrimPtrRep
realWorldTy = mkTyConTy realWorldTyCon
realWorldStatePrimTy = mkStatePrimTy realWorldTy -- State# RealWorld
\end{code}