// 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.// Object.getOwnPropertyDescriptors loads %FunctionPrototype%.caller, an// accessor property which inspects the current callstack. Verify that this// callstack iteration doesn't crash when there are no JS frames on the stack.Promise.resolve(function(){}).then(Object.getOwnPropertyDescriptors);