Avoid converting key to string for deleting of elements

src/messages.h

 // Copyright 2006-2008 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.
 
 // The infrastructure used for (localized) message reporting in V8.
 //
 // Note: there's a big unresolved issue about ownership of the data
 // structures used by this framework.
 
 #ifndef V8_MESSAGES_H_
@@ skipping 241 matching lines @@
   /* ReferenceError */                                                         \
   T(NonMethod, "'super' is referenced from non-method")                        \
   T(NotDefined, "% is not defined")                                            \
   T(StrongSuperCallMissing,                                                    \
     "In strong mode, invoking the super constructor in a subclass is "         \
     "required")                                                                \
   T(StrongUnboundGlobal,                                                       \
     "In strong mode, using an undeclared global variable '%' is not allowed")  \
   T(UnsupportedSuper, "Unsupported reference to 'super'")                      \
   /* RangeError */                                                             \
-  T(ArrayLengthOutOfRange, "defineProperty() array length out of range")       \
   T(DateRange, "Provided date is not in valid range.")                         \
   T(ExpectedLocation, "Expected Area/Location for time zone, got %")           \
   T(InvalidArrayBufferLength, "Invalid array buffer length")                   \
   T(InvalidArrayLength, "Invalid array length")                                \
   T(InvalidCodePoint, "Invalid code point %")                                  \
   T(InvalidCountValue, "Invalid count value")                                  \
   T(InvalidCurrencyCode, "Invalid currency code: %")                           \
   T(InvalidDataViewAccessorOffset,                                             \
     "Offset is outside the bounds of the DataView")                            \
   T(InvalidDataViewLength, "Invalid data view length")                         \
@@ skipping 182 matching lines @@
 
   static void DefaultMessageReport(Isolate* isolate, const MessageLocation* loc,
                                    Handle<Object> message_obj);
   static Handle<String> GetMessage(Isolate* isolate, Handle<Object> data);
   static SmartArrayPointer<char> GetLocalizedMessage(Isolate* isolate,
                                                      Handle<Object> data);
 };
 } }  // namespace v8::internal
 
 #endif  // V8_MESSAGES_H_