[LookupIterator] Avoid additional descriptor lookup in TransitionToAccessorProperty

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 6f1c4e44e9484c4a80f672c91b7dfc30b47a48a5..765c2ec1424eb0fb79ffb7f3ff0d6aa678848eb1 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -9816,9 +9816,8 @@ Handle<Map> Map::ReconfigureExistingProperty(Handle<Map> map, int descriptor,
   return new_map;
 }
 
-
 Handle<Map> Map::TransitionToAccessorProperty(Handle<Map> map,
-                                              Handle<Name> name,
+                                              Handle<Name> name, int descriptor,
                                               AccessorComponent component,
                                               Handle<Object> accessor,
                                               PropertyAttributes attributes) {
@@ -9861,7 +9860,6 @@ Handle<Map> Map::TransitionToAccessorProperty(Handle<Map> map,
 
   Handle<AccessorPair> pair;
   DescriptorArray* old_descriptors = map->instance_descriptors();
-  int descriptor = old_descriptors->SearchWithCache(isolate, *name, *map);
   if (descriptor != DescriptorArray::kNotFound) {
     if (descriptor != map->LastAdded()) {
       return Map::Normalize(map, mode, "AccessorsOverwritingNonLast");