[api] Cleaning up: Replace NeanderArray with FixedArray implementation

src/heap/heap.cc

 // 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.
 
 #include "src/heap/heap.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/ast/scopeinfo.h"
 #include "src/base/bits.h"
@@ skipping 2514 matching lines @@
   Factory* factory = isolate()->factory();
   Handle<Map> new_neander_map =
       factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
 
   // Don't use Smi-only elements optimizations for objects with the neander
   // map. There are too many cases where element values are set directly with a
   // bottleneck to trap the Smi-only -> fast elements transition, and there
   // appears to be no benefit for optimize this case.
   new_neander_map->set_elements_kind(TERMINAL_FAST_ELEMENTS_KIND);
   set_neander_map(*new_neander_map);
-
-  Handle<JSObject> listeners = factory->NewNeanderObject();
-  Handle<FixedArray> elements = factory->NewFixedArray(2);
-  elements->set(0, Smi::FromInt(0));
-  listeners->set_elements(*elements);
-  set_message_listeners(*listeners);
+  set_message_listeners(*TemplateList::New(isolate(), 2));
 }
 
 
 void Heap::CreateJSEntryStub() {
   JSEntryStub stub(isolate(), StackFrame::ENTRY);
   set_js_entry_code(*stub.GetCode());
 }
 
 
 void Heap::CreateJSConstructEntryStub() {
@@ skipping 3884 matching lines @@
 }
 
 
 // static
 int Heap::GetStaticVisitorIdForMap(Map* map) {
   return StaticVisitorBase::GetVisitorId(map);
 }
 
 }  // namespace internal
 }  // namespace v8