Use LookupIterator in SetAccessor / DefineAccessor and remove "search_hidden_prototypes" from Looku…

src/objects.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/builtins.h"
@@ skipping 1992 matching lines @@
   // be returned in case no hash was created yet.
   inline Object* GetIdentityHash();
 
   // Retrieves a permanent object identity hash code. May create and store a
   // hash code if needed and none exists.
   inline static Handle<Smi> GetOrCreateIdentityHash(
       Handle<JSReceiver> object);
 
   // Lookup a property.  If found, the result is valid and has
   // detailed information.
-  void LookupOwn(Handle<Name> name, LookupResult* result,
-                 bool search_hidden_prototypes = false);
+  void LookupOwn(Handle<Name> name, LookupResult* result);
   void Lookup(Handle<Name> name, LookupResult* result);
 
   enum KeyCollectionType { OWN_ONLY, INCLUDE_PROTOS };
 
   // Computes the enumerable keys for a JSObject. Used for implementing
   // "for (n in object) { }".
   MUST_USE_RESULT static MaybeHandle<FixedArray> GetKeys(
       Handle<JSReceiver> object,
       KeyCollectionType type);
 
@@ skipping 9201 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_