Redo "running" field in debug-delay.js and support "suspend" command

test/mjsunit/debug-scripts-request.js

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 42 matching lines @@
     assertTrue(response.success, json_response);
   } else {
     assertFalse(response.success, json_response);
   }
 }
 
 function listener(event, exec_state, event_data, data) {
   try {
   if (event == Debug.DebugEvent.Break) {
     // Get the debug command processor.
-    var dcp = exec_state.debugCommandProcessor();
+    var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
 
     // Test illegal scripts requests.
     testArguments(dcp, '{"types":"xx"}', false);
 
     // Test legal scripts requests.
     testArguments(dcp, '{}', true);
     testArguments(dcp, '{"types":1}', true);
     testArguments(dcp, '{"types":2}', true);
     testArguments(dcp, '{"types":4}', true);
     testArguments(dcp, '{"types":7}', true);
@@ skipping 25 matching lines @@
 // Add the debug event listener.
 Debug.setListener(listener);
 
 // Call debugger to invoke the debug event listener.
 debugger;
 
 // Make sure that the debug event listener vas invoked with no exceptions.
 assertTrue(listenerComplete,
            "listener did not run to completion, exception: " + exception);
 assertFalse(exception, "exception in listener")