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

test/mjsunit/debug-backtrace.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 51 matching lines @@
 ParsedResponse.prototype.response = function() {
   return this.response_;
 }
 
 
 ParsedResponse.prototype.body = function() {
   return this.response_.body;
 }
 
 
+ParsedResponse.prototype.running = function() {
+  return this.response_.running;
+}
+
+
 ParsedResponse.prototype.lookup = function(handle) {
   return this.refs_[handle];
 }
 
 
 function listener(event, exec_state, event_data, data) {
   try {
     if (event == Debug.DebugEvent.Break) {
       // The expected backtrace is
       // 0: f
       // 1: m
       // 2: g
       // 3: [anonymous]
 
       var response;
       var backtrace;
       var frame;
       var source;
 
-      // Get the debug command processor.
-      var dcp = exec_state.debugCommandProcessor();
+      var dcp;
+      // New copy of debug command processor paused state.
+      dcp = exec_state.debugCommandProcessor(false);
 
       // Get the backtrace.
       var json;
       json = '{"seq":0,"type":"request","command":"backtrace"}'
       var resp = dcp.processDebugJSONRequest(json);
       response = new ParsedResponse(resp);
       backtrace = response.body();
       assertEquals(0, backtrace.fromFrame);
       assertEquals(4, backtrace.toFrame);
       assertEquals(4, backtrace.totalFrames);
       var frames = backtrace.frames;
       assertEquals(4, frames.length);
       for (var i = 0; i < frames.length; i++) {
         assertEquals('frame', frames[i].type);
       }
       assertEquals(0, frames[0].index);
       assertEquals("f", response.lookup(frames[0].func.ref).name);
       assertEquals(1, frames[1].index);
       assertEquals("", response.lookup(frames[1].func.ref).name);
       assertEquals("m", response.lookup(frames[1].func.ref).inferredName);
       assertEquals(2, frames[2].index);
       assertEquals("g", response.lookup(frames[2].func.ref).name);
       assertEquals(3, frames[3].index);
       assertEquals("", response.lookup(frames[3].func.ref).name);
+      assertFalse(response.running(), "expected not running");
 
       // Get backtrace with two frames.
       json = '{"seq":0,"type":"request","command":"backtrace","arguments":{"fromFrame":1,"toFrame":3}}'
       response = new ParsedResponse(dcp.processDebugJSONRequest(json));
       backtrace = response.body();
       assertEquals(1, backtrace.fromFrame);
       assertEquals(3, backtrace.toFrame);
       assertEquals(4, backtrace.totalFrames);
       var frames = backtrace.frames;
       assertEquals(2, frames.length);
@@ skipping 100 matching lines @@
               '"arguments":{"frame":0,"fromLine":10000,"toLine":20000}}'
       response = new ParsedResponse(dcp.processDebugJSONRequest(json));
       assertFalse(response.response().success);
 
       // Test without arguments.
       json = '{"seq":0,"type":"request","command":"source"}'
       response = new ParsedResponse(dcp.processDebugJSONRequest(json));
       source = response.body();
       assertEquals(Debug.findScript(f).source, source.source);
 
+      // New copy of debug command processor in running state.
+      dcp = exec_state.debugCommandProcessor(true);
+      // Get the backtrace.
+      json = '{"seq":0,"type":"request","command":"backtrace"}'
+      resp = dcp.processDebugJSONRequest(json);
+      response = new ParsedResponse(resp);
+      // It might be argueable, but we expect response to have body when
+      // not suspended
+      assertTrue(!!response.body(), "response should be null");
+      assertTrue(response.running(), "expected running");
+
       listenerCalled = true;
     }
   } catch (e) {
     exception = e
   };
 };
 
 // Add the debug event listener.
 Debug.setListener(listener);
 
 // Set a break point and call to invoke the debug event listener.
 Debug.setBreakPoint(f, 0, 0);
 g();
 
 // Make sure that the debug event listener vas invoked.
 assertFalse(exception, "exception in listener");
 assertTrue(listenerCalled);