//------------------------------------------------------------------------------------------------------- | |
// Copyright (C) Microsoft. All rights reserved. | |
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information. | |
//------------------------------------------------------------------------------------------------------- | |
var parent_sym = Symbol.for('parent symbol'); | |
var parent_string = Symbol.keyFor(parent_sym); | |
var child_sym = Symbol.for('child symbol'); |