// Copyright 2015 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: --turbo-filter=test --allow-natives-syntax

function test() {
  try {
    [].foo();
  } catch (e) {
    return e.message;
  }
}

assertEquals("[].foo is not a function", test());
%OptimizeFunctionOnNextCall(test);
assertEquals("[].foo is not a function", test());
