Handle missing context when getting frame details

test/mjsunit/regress/regress-5279.js

+// 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.
+
+// Flags: --allow-natives-syntax --expose-debug-as debug
+
+var Debug = debug.Debug;
+
+Debug.setListener(() => undefined);
+
+const myObj = {};
+
+for (let i = 0; i < 10; i++) {
+  %OptimizeOsr();
+  %ScheduleBreak();
+}