Fixed spec violation of storing to length of a frozen object.

src/ic.cc

Index: src/ic.cc
diff --git a/src/ic.cc b/src/ic.cc
index f1e3c5539d64fbd9f74cc0de671edc62a2cb3db6..ea3cb5f84a35e2ae073ad856585a3a2d4cacbdf4 100644
--- a/src/ic.cc
+++ b/src/ic.cc
@@ -1234,26 +1234,6 @@ MaybeObject* StoreIC::Store(Handle<Object> object,
     return *result;
   }
 
-  // Use specialized code for setting the length of arrays with fast
-  // properties. Slow properties might indicate redefinition of the length
-  // property. Note that when redefined using Object.freeze, it's possible
-  // to have fast properties but a read-only length.
-  if (FLAG_use_ic &&
-      receiver->IsJSArray() &&
-      name->Equals(isolate()->heap()->length_string()) &&
-      Handle<JSArray>::cast(receiver)->AllowsSetElementsLength() &&
-      receiver->HasFastProperties() &&
-      !receiver->map()->is_frozen()) {
-    Handle<Code> stub =
-        StoreArrayLengthStub(kind(), strict_mode()).GetCode(isolate());
-    set_target(*stub);
-    TRACE_IC("StoreIC", name);
-    Handle<Object> result = JSReceiver::SetProperty(
-        receiver, name, value, NONE, strict_mode(), store_mode);
-    RETURN_IF_EMPTY_HANDLE(isolate(), result);
-    return *result;
-  }
-
   LookupResult lookup(isolate());
   bool can_store = LookupForWrite(receiver, name, value, &lookup, this);
   if (!can_store &&
@@ -1404,6 +1384,17 @@ Handle<Code> StoreIC::CompileHandler(LookupResult* lookup,
       // TODO(dcarney): Handle correctly.
       if (callback->IsDeclaredAccessorInfo()) break;
       ASSERT(callback->IsForeign());
+
+      // Use specialized code for setting the length of arrays with fast
+      // properties. Slow properties might indicate redefinition of the length
+      // property.
+      if (receiver->IsJSArray() &&
+          name->Equals(isolate()->heap()->length_string()) &&
+          Handle<JSArray>::cast(receiver)->AllowsSetElementsLength() &&
+          receiver->HasFastProperties()) {
+        return compiler.CompileStoreArrayLength(receiver, lookup, name);
+      }
+
       // No IC support for old-style native accessors.
       break;
     }