Fix Array::New(length) in the API to return an array with the provided length.

src/api.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3942 matching lines @@
   if (IsDeadCheck("v8::RegExp::GetFlags()")) return v8::RegExp::kNone;
   i::Handle<i::JSRegExp> obj = Utils::OpenHandle(this);
   return static_cast<RegExp::Flags>(obj->GetFlags().value());
 }
 
 
 Local<v8::Array> v8::Array::New(int length) {
   EnsureInitialized("v8::Array::New()");
   LOG_API("Array::New");
   ENTER_V8;
-  i::Handle<i::JSArray> obj = i::Factory::NewJSArray(length);
+  int real_length = length > 0 ? length : 0;
+  i::Handle<i::JSArray> obj = i::Factory::NewJSArray(real_length);
+  obj->set_length(*i::Factory::NewNumberFromInt(real_length));
   return Utils::ToLocal(obj);
 }
 
 
 uint32_t v8::Array::Length() const {
   if (IsDeadCheck("v8::Array::Length()")) return 0;
   i::Handle<i::JSArray> obj = Utils::OpenHandle(this);
   i::Object* length = obj->length();
   if (length->IsSmi()) {
     return i::Smi::cast(length)->value();
@@ skipping 1261 matching lines @@
 
 
 char* HandleScopeImplementer::Iterate(ObjectVisitor* v, char* storage) {
   HandleScopeImplementer* thread_local =
       reinterpret_cast<HandleScopeImplementer*>(storage);
   thread_local->IterateThis(v);
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal