import Bag ( bagToList, Bag )
import Class ( Class )
import Var ( TyVar, Id, idName )
-import Maybes ( MaybeErr(..), mkLookupFunDef )
+import Maybes ( MaybeErr(..) )
import Name ( getSrcLoc, nameModule, isLocallyDefined )
import SrcLoc ( SrcLoc )
import Type ( Type, ClassContext )
import Class ( classTyCon )
import DataCon ( DataCon )
import TyCon ( tyConDataCons )
-import Unique ( Unique, getUnique )
-import Util ( equivClassesByUniq )
import Outputable
\end{code}