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

test/mjsunit/debug-evaluate.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 41 matching lines @@
   } else {
     request = '{' + base_request + '}'
   }
   var response = safeEval(dcp.processDebugJSONRequest(request));
   if (success) {
     assertTrue(response.success, request + ' -> ' + response.message);
     assertEquals(result, response.body.value);
   } else {
     assertFalse(response.success, request + ' -> ' + response.message);
   }
-  assertFalse(response.running, request + ' -> expected not running');
+  assertEquals(response.running, "unspecified_running_state",
+               request + ' -> expected not running');
 }
 
 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 some illegal evaluate requests.
       testRequest(dcp, void 0, false);
       testRequest(dcp, '{"expression":"1","global"=true}', false);
       testRequest(dcp, '{"expression":"a","frame":4}', false);
 
       // Test some legal evaluate requests.
       testRequest(dcp, '{"expression":"1+2"}', true, 3);
       testRequest(dcp, '{"expression":"a+2"}', true, 5);
       testRequest(dcp, '{"expression":"({\\"a\\":1,\\"b\\":2}).b+2"}', true, 4);
@@ skipping 25 matching lines @@
   var a = 2;
   f();
 };
 
 a = 1;
 
 // Set a break point at return in f and invoke g to hit the breakpoint.
 Debug.setBreakPoint(f, 2, 0);
 g();
 
+assertFalse(exception, "exception in listener")
 // Make sure that the debug event listener vas invoked.
 assertTrue(listenerComplete, "listener did not run to completion");
-assertFalse(exception, "exception in listener")