Don't reverse bindings in rnMethodBinds (fix Trac #4126)

diff --git a/compiler/rename/RnBinds.lhs b/compiler/rename/RnBinds.lhs
index ee45f61..2afd04d 100644 (file)
--- a/compiler/rename/RnBinds.lhs
+++ b/compiler/rename/RnBinds.lhs
@@ -608,10 +608,11 @@ rnMethodBinds :: Name                     -- Class name
              -> RnM (LHsBinds Name, FreeVars)
 
 rnMethodBinds cls sig_fn gen_tyvars binds
-  = foldM do_one (emptyBag,emptyFVs) (bagToList binds)
-  where do_one (binds,fvs) bind = do
-          (bind', fvs_bind) <- rnMethodBind cls sig_fn gen_tyvars bind
-          return (bind' `unionBags` binds, fvs_bind `plusFV` fvs)
+  = foldlM do_one (emptyBag,emptyFVs) (bagToList binds)
+  where 
+    do_one (binds,fvs) bind 
+       = do { (bind', fvs_bind) <- rnMethodBind cls sig_fn gen_tyvars bind
+           ; return (binds `unionBags` bind', fvs_bind `plusFV` fvs) }
 
 rnMethodBind :: Name
              -> (Name -> [Name])