Always forward ValueChanged() event.

- If creating children failed, we wouldn't forward the event on
  to the listeners.

src/apps/debugger/debug_managers/ValueNodeManager.cpp

@@ -149,15 +149,14 @@ ValueNodeManager::ValueNodeValueChanged(ValueNode* valueNode)
 	if (valueNode->ChildCreationNeedsValue()
 		&& !valueNode->ChildrenCreated()) {
 		status_t error = valueNode->CreateChildren();
-		if (error != B_OK)
-			return;
-
+		if (error == B_OK) {
 			for (int32 i = 0; i < valueNode->CountChildren(); i++) {
 				ValueNodeChild* child = valueNode->ChildAt(i);
 				_CreateValueNode(child);
 				AddChildNodes(child);
 			}
 		}
+	}
 
 	for (int32 i = fListeners.CountItems() - 1; i >= 0; i--)
 		fListeners.ItemAt(i)->ValueNodeValueChanged(valueNode);