+zonkExpr env (HsHetMetBrak c e)
+ = do c' <- zonkTcTypeToType env c
+ e' <- zonkLExpr env e
+ return (HsHetMetBrak c' e')
+
+zonkExpr env (HsHetMetEsc c t e)
+ = do c' <- zonkTcTypeToType env c
+ t' <- zonkTcTypeToType env t
+ e' <- zonkLExpr env e
+ return (HsHetMetEsc c' t' e')
+
+zonkExpr env (HsHetMetCSP c e)
+ = do c' <- zonkTcTypeToType env c
+ e' <- zonkLExpr env e
+ return (HsHetMetCSP c' e')
+