private bool ContainsConditionalDirectiveTrivia(SyntaxNode node)
        {
            for (var currentDirective = node.GetFirstDirective(); currentDirective != null && node.Contains(currentDirective); currentDirective = currentDirective.GetNextDirective())
            {
                switch (currentDirective.Kind())
                {
                case SyntaxKind.IfDirectiveTrivia:
                case SyntaxKind.ElseDirectiveTrivia:
                case SyntaxKind.ElifDirectiveTrivia:
                case SyntaxKind.EndIfDirectiveTrivia:
                    return true;
                }
            }

            return false;
        }