[ic][runtime] Don't use LookupIterator::ForTransitionHandler() constructor.

It looks like the normal ways of creating lookup iterators work better.

Bug: v8:5988, chromium:828282
Change-Id: Ifd623b2e93708ff8684d056d9292b7779f611a3c
Reviewed-on: https://chromium-review.googlesource.com/997474Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52392}

src/ic/ic.cc

@@ -1390,16 +1390,7 @@ MaybeHandle<Object> StoreIC::Store(Handle<Object> object, Handle<Name> name,
   if (state() != UNINITIALIZED) {
     JSObject::MakePrototypesFast(object, kStartAtPrototype, isolate());
   }
-  MaybeHandle<Map> maybe_transition_map;
-  if (object->IsJSReceiver()) {
-    name = isolate()->factory()->InternalizeName(name);
-    maybe_transition_map =
-        TransitionsAccessor(receiver_map()).FindTransitionToDataProperty(name);
-  }
-
-  LookupIterator it = LookupIterator::ForTransitionHandler(
-      isolate(), object, name, value, maybe_transition_map);
-
+  LookupIterator it(object, name);
   bool use_ic = FLAG_use_ic;
 
   if (name->IsPrivate()) {

src/lookup.cc

@@ -74,6 +74,7 @@ LookupIterator LookupIterator::PropertyOrElement(Isolate* isolate,
   return LookupIterator(receiver, name, configuration);
 }
 
+// TODO(ishell): Consider removing this way of LookupIterator creation.
 // static
 LookupIterator LookupIterator::ForTransitionHandler(
     Isolate* isolate, Handle<Object> receiver, Handle<Name> name,

src/objects.cc

@@ -2126,14 +2126,7 @@ MUST_USE_RESULT Maybe<bool> FastAssign(
     }
 
     if (use_set) {
-      Handle<Map> target_map(target->map(), isolate);
-      MaybeHandle<Map> maybe_transition_map =
-          TransitionsAccessor(target_map)
-              .FindTransitionToDataProperty(next_key);
-
-      LookupIterator it = LookupIterator::ForTransitionHandler(
-          isolate, target, next_key, prop_value, maybe_transition_map);
-
+      LookupIterator it(target, next_key, target);
       Maybe<bool> result =
           Object::SetProperty(&it, prop_value, LanguageMode::kStrict,
                               Object::CERTAINLY_NOT_STORE_FROM_KEYED);