public virtual void PostWalk(ConditionalExpression node) { }
public override void PostWalk(ConditionalExpression node) { }
// ConditionalExpression public virtual bool Walk(ConditionalExpression node) { return(true); }
// ConditionalExpression public override bool Walk(ConditionalExpression node) { return(false); }
// ConditionalExpression public override bool Walk(ConditionalExpression node) { return(Location >= node.StartIndex && Location <= node.EndIndex); }