| // Copyright 2019 the V8 project authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style license that can be | |
| // found in the LICENSE file. | |
| // Flags: --always-opt | |
| __v_1 = {}; | |
| __v_1.__defineGetter__('x', function () { }); | |
| __proto__ = __v_1; | |
| function __f_4() { | |
| __v_1 = {}; | |
| } | |
| function __f_3() { | |
| 'use strict'; | |
| x = 42; | |
| } | |
| __f_4() | |
| try { | |
| __f_3(); | |
| } catch (e) { } | |
| __proto__ = __v_1; | |
| assertThrows(() => __f_3(), ReferenceError); |