import Maybe ( catMaybes )
import SrcLoc ( srcLocSpan, unLoc, noLoc, Located(..), srcSpanStart )
import ListSetOps ( minusList )
import Outputable
import Bag
import Maybe ( catMaybes )
import SrcLoc ( srcLocSpan, unLoc, noLoc, Located(..), srcSpanStart )
import ListSetOps ( minusList )
import Outputable
import Bag