rn_bracket _ (ExpBr e) = do { (e', fvs) <- rnLExpr e
                            ; return (ExpBr e', fvs) }
rn_bracket _ (ExpBr e) = do { (e', fvs) <- rnLExpr e
                            ; return (ExpBr e', fvs) }
rn_bracket _ (ExpBr e) = do { (e', fvs) <- rnLExpr e
                            ; return (ExpBr e', fvs) }