Fix HasProperty/HasElement for Proxies on the prototype chain

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 <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 1811 matching lines @@
   DECLARE_CAST(JSReceiver)
 
   // ES6 section 7.1.1 ToPrimitive
   MUST_USE_RESULT static MaybeHandle<Object> ToPrimitive(
       Handle<JSReceiver> receiver,
       ToPrimitiveHint hint = ToPrimitiveHint::kDefault);
   MUST_USE_RESULT static MaybeHandle<Object> OrdinaryToPrimitive(
       Handle<JSReceiver> receiver, OrdinaryToPrimitiveHint hint);
 
   // Implementation of [[HasProperty]], ECMA-262 5th edition, section 8.12.6.
+  MUST_USE_RESULT static Maybe<bool> HasProperty(LookupIterator* it);
   MUST_USE_RESULT static inline Maybe<bool> HasProperty(
       Handle<JSReceiver> object, Handle<Name> name);
   MUST_USE_RESULT static inline Maybe<bool> HasOwnProperty(Handle<JSReceiver>,
                                                            Handle<Name> name);
   MUST_USE_RESULT static inline Maybe<bool> HasElement(
       Handle<JSReceiver> object, uint32_t index);
   MUST_USE_RESULT static inline Maybe<bool> HasOwnElement(
       Handle<JSReceiver> object, uint32_t index);
 
   // Implementation of [[Delete]], ECMA-262 5th edition, section 8.12.7.
@@ skipping 8960 matching lines @@
   // (elements + properties) in the current level.
   int levelLength_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(KeyAccumulator);
 };
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_