InlinedVisitor: Migrate html to use inlined tracing

Source/core/html/HTMLLabelElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 256 matching lines @@
     if (insertionPoint->isInTreeScope() && treeScope() == document()) {
         TreeScope& treeScope = insertionPoint->treeScope();
         if (treeScope.shouldCacheLabelsByForAttribute())
             updateLabel(treeScope, fastGetAttribute(forAttr), nullAtom);
     }
     HTMLElement::removedFrom(insertionPoint);
     FormAssociatedElement::removedFrom(insertionPoint);
     document().removeFormAssociation(this);
 }
 
-void HTMLLabelElement::trace(Visitor* visitor)
+DEFINE_TRACE(HTMLLabelElement)
 {
     HTMLElement::trace(visitor);
     FormAssociatedElement::trace(visitor);
 }
 
 void HTMLLabelElement::parseAttribute(const QualifiedName& attributeName, const AtomicString& attributeValue)
 {
     if (attributeName == formAttr)
         formAttributeChanged();
     else
         HTMLElement::parseAttribute(attributeName, attributeValue);
 }
 
 } // namespace