InlinedVisitor: Migrate xml to use inlined tracing

Source/core/xml/XPathPath.cpp

 /*
  * Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
  * Copyright (C) 2006, 2009 Apple Inc.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 32 matching lines @@
     m_predicates.swap(predicates);
     setIsContextNodeSensitive(m_expr->isContextNodeSensitive());
     setIsContextPositionSensitive(m_expr->isContextPositionSensitive());
     setIsContextSizeSensitive(m_expr->isContextSizeSensitive());
 }
 
 Filter::~Filter()
 {
 }
 
-void Filter::trace(Visitor* visitor)
+DEFINE_TRACE(Filter)
 {
     visitor->trace(m_expr);
     visitor->trace(m_predicates);
     Expression::trace(visitor);
 }
 
 Value Filter::evaluate(EvaluationContext& evaluationContext) const
 {
     Value v = m_expr->evaluate(evaluationContext);
 
@@ skipping 26 matching lines @@
     setIsContextNodeSensitive(true);
 }
 
 LocationPath::~LocationPath()
 {
 #if !ENABLE(OILPAN)
     deleteAllValues(m_steps);
 #endif
 }
 
-void LocationPath::trace(Visitor* visitor)
+DEFINE_TRACE(LocationPath)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_steps);
 #endif
     Expression::trace(visitor);
 }
 
 Value LocationPath::evaluate(EvaluationContext& evaluationContext) const
 {
     EvaluationContext clonedContext = evaluationContext;
@@ skipping 99 matching lines @@
 {
     setIsContextNodeSensitive(filter->isContextNodeSensitive());
     setIsContextPositionSensitive(filter->isContextPositionSensitive());
     setIsContextSizeSensitive(filter->isContextSizeSensitive());
 }
 
 Path::~Path()
 {
 }
 
-void Path::trace(Visitor* visitor)
+DEFINE_TRACE(Path)
 {
     visitor->trace(m_filter);
     visitor->trace(m_path);
     Expression::trace(visitor);
 }
 
 Value Path::evaluate(EvaluationContext& context) const
 {
     Value v = m_filter->evaluate(context);
 
     NodeSet& nodes = v.modifiableNodeSet(context);
     m_path->evaluate(context, nodes);
 
     return v;
 }
 
 }
 }