Fix array concat to follow the specification in the presence of element getters.

src/handles-inl.h

Index: src/handles-inl.h
diff --git a/src/handles-inl.h b/src/handles-inl.h
index b31351256edfe7711bd574147bbc03b9c6a8f3d3..eca2b877a629ddf7308a9695523369622dcc56bb 100644
--- a/src/handles-inl.h
+++ b/src/handles-inl.h
@@ -36,14 +36,14 @@
 namespace v8 {
 namespace internal {
 
-template<class T>
+template<typename T>
 Handle<T>::Handle(T* obj) {
   ASSERT(!obj->IsFailure());
   location_ = HandleScope::CreateHandle(obj);
 }
 
 
-template <class T>
+template <typename T>
 inline T* Handle<T>::operator*() const {
   ASSERT(location_ != NULL);
   ASSERT(reinterpret_cast<Address>(*location_) != kHandleZapValue);
@@ -51,6 +51,15 @@ inline T* Handle<T>::operator*() const {
 }
 
 
+template <typename T>
+RootVar<T>::RootVar(T* value) : location_(HandleScope::CreateHandle(value)) { }
+
+
+template <typename T>
+RootVar<T>::RootVar(Handle<T> value)
+    : location_(HandleScope::CreateHandle(*value)) { }
+
+
 #ifdef DEBUG
 inline NoHandleAllocation::NoHandleAllocation() {
   v8::ImplementationUtilities::HandleScopeData* current =