// 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.

var g = function f(a = 3) {
  var context_allocated = undefined;
  function inner() { f(); f(context_allocated) };
  inner();
};
assertThrows("g()", RangeError);
