v8/test/message/fail/class-fields-private-throw-read.js

// Copyright 2018 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.

class X {
  #x;
  eq(o) { return this.#x === o.#x; }
}

new X().eq({});