third_party/v8/test/mjsunit/regress/regress-crbug-664802.js - cobalt - Git at Google

 // Copyright 2016 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.

 var o = {};
 o.__proto__ = new Proxy({}, {});

 var m = new Map();
 m.set({});
 m.set(o);
	// Copyright 2016 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.

	var o = {};
	o.__proto__ = new Proxy({}, {});

	var m = new Map();
	m.set({});
	m.set(o);