Remove remaining HTML elements

sky/engine/core/dom/shadow/ComposedTreeWalker.cpp

Index: sky/engine/core/dom/shadow/ComposedTreeWalker.cpp
diff --git a/sky/engine/core/dom/shadow/ComposedTreeWalker.cpp b/sky/engine/core/dom/shadow/ComposedTreeWalker.cpp
index b3f49229af8a19b50ecb64b8ad63f9f3633bd9a6..042b4002c56a9aa3ba10239a734189a9da6fd338 100644
--- a/sky/engine/core/dom/shadow/ComposedTreeWalker.cpp
+++ b/sky/engine/core/dom/shadow/ComposedTreeWalker.cpp
@@ -70,7 +70,7 @@ Node* ComposedTreeWalker::traverseNode(const Node* node, TraversalDirection dire
     const InsertionPoint* insertionPoint = toInsertionPoint(node);
     if (Node* found = traverseDistributedNodes(direction == TraversalDirectionForward ? insertionPoint->first() : insertionPoint->last(), insertionPoint, direction))
         return found;
-    ASSERT(isHTMLContentElement(node) && !node->hasChildren());
+    ASSERT_NOT_REACHED();
     return 0;
 }