Revert of [debugger] Migrate more debugger tests to inspector

test/debugger/debug/es6/debug-stepin-generators.js

-// Copyright 2014 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.
-
-
-Debug = debug.Debug
-var exception = null;
-var yields = 0;
-
-function listener(event, exec_state, event_data, data) {
-  if (event != Debug.DebugEvent.Break) return;
-  try {
-    var source = exec_state.frame(0).sourceLineText();
-    print(source);
-    if (/stop stepping/.test(source)) return;
-    if (/yield/.test(source)) yields++;
-    exec_state.prepareStep(Debug.StepAction.StepIn);
-  } catch (e) {
-    print(e, e.stack);
-    exception = e;
-  }
-};
-
-Debug.setListener(listener);
-
-function* g() {
-  for (var i = 0; i < 3; ++i) {
-    yield i;
-  }
-}
-
-var i = g();
-debugger;
-for (var num of g()) {}
-i.next();
-
-print(); // stop stepping
-
-// Not stepped into.
-i.next();
-i.next();
-
-assertNull(exception);
-assertEquals(4, yields);