[debugger] Migrate more debugger tests to inspector

test/mjsunit/ignition/debugger-statement.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: --ignition-filter=f --expose-debug-as debug
-
-var Debug = debug.Debug;
-
-var break_count = 0;
-
-function f() {
-  debugger;
-}
-
-function listener(event, exec_data) {
-  if (event != Debug.DebugEvent.Break) return;
-  break_count++;
-}
-
-f();
-assertEquals(0, break_count);
-
-Debug.setListener(listener);
-
-f();
-assertEquals(1, break_count);
-
-Debug.setListener(null);
-
-f();
-assertEquals(1, break_count);