Removed unused import.
*merge if/when SPJ's huge commit is merged*
import Subst ( mkTyVarSubst, substTy )
import TysWiredIn ( voidTy )
import Outputable
import Subst ( mkTyVarSubst, substTy )
import TysWiredIn ( voidTy )
import Outputable
-
-import Maybe
-import IOExts (trace)
\end{code}
%************************************************************************
\end{code}
%************************************************************************