[proxies] [[HasProperty]]: fix trap call.

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 9504 matching lines @@
 
   // ES6 9.5.5
   static bool GetOwnPropertyDescriptor(LookupIterator* it,
                                        PropertyDescriptor* desc);
 
   // ES6 9.5.6
   static bool DefineOwnProperty(Isolate* isolate, Handle<JSProxy> object,
                                 Handle<Object> key, PropertyDescriptor* desc,
                                 ShouldThrow should_throw);
 
+  // ES6 9.5.7
+  MUST_USE_RESULT static Maybe<bool> HasProperty(Isolate* isolate,
+                                                 Handle<JSProxy> proxy,
+                                                 Handle<Name> name);
+
   // ES6 9.5.10 (when passed SLOPPY)
   MUST_USE_RESULT static Maybe<bool> DeletePropertyOrElement(
       Handle<JSProxy> proxy, Handle<Name> name, LanguageMode language_mode);
 
   // ES6 9.5.11
   static bool Enumerate(Isolate* isolate, Handle<JSReceiver> receiver,
                         Handle<JSProxy> proxy, KeyAccumulator* accumulator);
 
   // ES6 9.5.12
   static bool OwnPropertyKeys(Isolate* isolate, Handle<JSReceiver> receiver,
@@ skipping 46 matching lines @@
 
   MUST_USE_RESULT static MaybeHandle<Object> GetTrap(Handle<JSProxy> proxy,
                                                      Handle<String> trap);
 
   // Invoke a trap by name. If the trap does not exist on this's handler,
   // but derived_trap is non-NULL, invoke that instead.  May cause GC.
   MUST_USE_RESULT static MaybeHandle<Object> CallTrap(
       Handle<JSProxy> proxy, const char* name, Handle<Object> derived_trap,
       int argc, Handle<Object> args[]);
 
-  MUST_USE_RESULT static Maybe<bool> HasPropertyWithHandler(
-      Handle<JSProxy> proxy, Handle<Name> name);
-
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSProxy);
 };
 
 
 class JSFunctionProxy: public JSProxy {
  public:
   // [call_trap]: The call trap.
   DECL_ACCESSORS(call_trap, JSReceiver)
 
   // [construct_trap]: The construct trap.
@@ skipping 1112 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_