Add pause/resume for isolates in vmservice/observatory.

runtime/bin/main.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 
 #include "include/dart_api.h"
 #include "include/dart_debugger_api.h"
@@ skipping 925 matching lines @@
       Dart_SetVMFlags(vm_options.count(), vm_options.arguments());
       exit(0);
     } else {
       PrintUsage();
       exit(kErrorExitCode);
     }
   }
 
   if (!DartUtils::SetOriginalWorkingDirectory()) {
     OSError err;
-    fprintf(stderr, "Error determinig current directory: %s\n", err.message());
+    fprintf(stderr, "Error determining current directory: %s\n", err.message());
     fflush(stderr);
     exit(kErrorExitCode);
   }
 
   Dart_SetVMFlags(vm_options.count(), vm_options.arguments());
 
   // Initialize the Dart VM.
   if (!Dart_Initialize(CreateIsolateAndSetup, NULL, NULL, ShutdownIsolate,
                        DartUtils::OpenFile,
                        DartUtils::ReadFile,
@@ skipping 15 matching lines @@
       Log::Print("Debugger listening on port %d\n", debug_port);
     }
   }
 
   // Start event handler.
   EventHandler::Start();
 
   ASSERT(Dart_CurrentIsolate() == NULL);
   // Start the VM service isolate, if necessary.
   if (start_vm_service) {
+    if (!start_debugger) {
+      DebuggerConnectionHandler::InitForVmService();
+    }
     ASSERT(vm_service_server_ip != NULL && vm_service_server_port >= 0);
     bool r = VmService::Start(vm_service_server_ip , vm_service_server_port);
     if (!r) {
       Log::PrintErr("Could not start VM Service isolate %s\n",
                     VmService::GetErrorMessage());
     }
     Dart_RegisterIsolateServiceRequestCallback(
         "io", &ServiceRequestHandler, NULL);
   }
   ASSERT(Dart_CurrentIsolate() == NULL);
@@ skipping 140 matching lines @@
   exit(Process::GlobalExitCode());
 }
 
 }  // namespace bin
 }  // namespace dart
 
 int main(int argc, char** argv) {
   dart::bin::main(argc, argv);
   UNREACHABLE();
 }