| // Copyright 2017 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: --allow-natives-syntax | |
| 'use strict' | |
| function g() { | |
| var x = 1; | |
| try { undefined.x } catch (e) { x = e; } | |
| (function() { x }); | |
| return x; | |
| } | |
| function f(a) { | |
| var args = arguments; | |
| assertInstanceof(g(), TypeError); | |
| return args.length; | |
| } | |
| assertEquals(1, f(0)); | |
| assertEquals(1, f(0)); | |
| %OptimizeFunctionOnNextCall(f); | |
| assertEquals(1, f(0)); |