[debugger] Migrate more debugger tests to inspector

test/mjsunit/regress/regress-crbug-582048.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: --expose-debug-as debug
-
-var Debug = debug.Debug;
-
-function listener(event, exec_state, event_data, data) {
-  if (event != Debug.DebugEvent.Break) return;
-  try {
-    var frame_count = exec_state.frameCount();
-    for (var i = 0; i < frame_count; i++) {
-      var frame = exec_state.frame(i);
-      var scope_count = frame.scopeCount();
-      for (var j = 0; j < scope_count; j++) {
-        var scope = frame.scope(j);
-        assertTrue(scope.scopeObject().property('').isUndefined());
-      }
-    }
-  } catch (e) {
-    print(e, e.stack);
-    exception = e;
-  }
-}
-
-Debug.setListener(listener);
-
-(function(a = 1) { debugger; })();
-
-Debug.setListener(null);