[debug-wrapper] Adapt tests, breakpoint.actual_location

test/mjsunit/regress/regress-crbug-491943.js

-// 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: --expose-debug-as debug
-
-var Debug = debug.Debug;
-var receiver = null;
-
-Debug.setListener(function(event, exec_state, event_data, data) {
-  if (event != Debug.DebugEvent.Break) return;
-  receiver = exec_state.frame(0).evaluate('this').value();
-});
-
-
-function f() {
-  var context_local = 1;
-  (function() { return context_local; })();
-  debugger;
-}
-
-var expected = {};
-f.call(expected);
-
-assertEquals(expected, receiver);