InlinedVisitor: Migrate xml to use inlined tracing

Source/core/xml/XPathPredicate.h

Index: Source/core/xml/XPathPredicate.h
diff --git a/Source/core/xml/XPathPredicate.h b/Source/core/xml/XPathPredicate.h
index 2faa9913f86c01e8f0be860c3ab9744f87c4ef38..629d83d0e16b9c83af79322f641a39b64fe07908 100644
--- a/Source/core/xml/XPathPredicate.h
+++ b/Source/core/xml/XPathPredicate.h
@@ -37,7 +37,7 @@ namespace XPath {
 class Number final : public Expression {
 public:
     explicit Number(double);
-    virtual void trace(Visitor*) override;
+    DECLARE_VIRTUAL_TRACE();
 
 private:
     virtual Value evaluate(EvaluationContext&) const override;
@@ -49,7 +49,7 @@ private:
 class StringExpression final : public Expression {
 public:
     explicit StringExpression(const String&);
-    virtual void trace(Visitor*) override;
+    DECLARE_VIRTUAL_TRACE();
 
 private:
     virtual Value evaluate(EvaluationContext&) const override;
@@ -115,7 +115,7 @@ class Predicate final : public NoBaseWillBeGarbageCollected<Predicate> {
     DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(Predicate);
 public:
     explicit Predicate(PassOwnPtrWillBeRawPtr<Expression>);
-    void trace(Visitor*);
+    DECLARE_TRACE();
 
     bool evaluate(EvaluationContext&) const;
     bool isContextPositionSensitive() const { return m_expr->isContextPositionSensitive() || m_expr->resultType() == Value::NumberValue; }