JSTests/test262/test/language/expressions/compound-assignment/11.13.2-19-s.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 11.13.2-19-s
description: >
    ReferenceError isn't thrown if the LeftHandSideExpression of a Compound
    Assignment operator(+=) evaluates to a resolvable reference
---*/

        var _11_13_2_19 = -1
        _11_13_2_19 += 10;

assert.sameValue(_11_13_2_19, 9, '_11_13_2_19');