[debugger] Migrate more debugger tests to inspector

test/debugger/debug/regress/regress-3717.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.
 
-// Flags: --expose-debug-as debug --no-lazy
+// Flags: --no-lazy
 
 Debug = debug.Debug;
 var exception = null;
 var break_count = 0;
 
 function f() {
   function g(p) {
     return 1;
   }
   g(1);
 };
 
 function listener(event, exec_state, event_data, data) {
   try {
     if (event == Debug.DebugEvent.Break) break_count++;
   } catch (e) {
     exception = e;
   }
 }
 
 Debug.setListener(listener);
 var bp = Debug.setBreakPoint(f, 2);
 f();
 Debug.clearBreakPoint(bp);
 Debug.setListener(null);
 
 assertEquals(1, break_count);
 assertNull(exception);