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

src/factory.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 699 matching lines @@
 }
 
 
 
 Handle<JSObject> Factory::NewJSObjectFromMap(Handle<Map> map) {
   CALL_HEAP_FUNCTION(Heap::AllocateJSObjectFromMap(*map, NOT_TENURED),
                      JSObject);
 }
 
 
-Handle<JSArray> Factory::NewJSArray(int length,
+Handle<JSArray> Factory::NewJSArray(int capacity,
                                     PretenureFlag pretenure) {
   Handle<JSObject> obj = NewJSObject(Top::array_function(), pretenure);
-  CALL_HEAP_FUNCTION(Handle<JSArray>::cast(obj)->Initialize(length), JSArray);
+  CALL_HEAP_FUNCTION(Handle<JSArray>::cast(obj)->Initialize(capacity), JSArray);
 }
 
 
 Handle<JSArray> Factory::NewJSArrayWithElements(Handle<FixedArray> elements,
                                                 PretenureFlag pretenure) {
   Handle<JSArray> result =
       Handle<JSArray>::cast(NewJSObject(Top::array_function(), pretenure));
   result->SetContent(*elements);
   return result;
 }
@@ skipping 335 matching lines @@
     Execution::ConfigureInstance(instance,
                                  instance_template,
                                  pending_exception);
   } else {
     *pending_exception = false;
   }
 }
 
 
 } }  // namespace v8::internal