Add dart:io and dart:_builtin to the dartium snapshot so that vmservices can work, the previous app…

runtime/bin/vmservice_dartium.cc

 // Copyright (c) 2015, 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 "bin/vmservice_dartium.h"
 
 #include "bin/builtin.h"
 #include "bin/dartutils.h"
 #include "bin/eventhandler.h"
 #include "bin/platform.h"
@@ skipping 34 matching lines @@
                                             "main",
                                             snapshot_buffer,
                                             NULL,
                                             &error);
   if (!isolate) {
     fprintf(stderr, "Dart_CreateIsolate failed: %s\n", error);
     return 0;
   }
 
   Dart_EnterScope();
+  Builtin::SetNativeResolver(Builtin::kBuiltinLibrary);
+  Builtin::SetNativeResolver(Builtin::kIOLibrary);
 
-  Dart_SetLibraryTagHandler(DartUtils::LibraryTagHandler);
   Dart_Handle builtin_lib =
       Builtin::LoadAndCheckLibrary(Builtin::kBuiltinLibrary);
   CHECK_RESULT(builtin_lib);
-  Dart_Handle io_lib =
-      Builtin::LoadAndCheckLibrary(Builtin::kIOLibrary);
-  CHECK_RESULT(io_lib);
 
   Dart_Handle result;
 
   // Prepare for script loading by setting up the 'print' and 'timer'
   // closures and setting up 'package root' for URI resolution.
   result = DartUtils::PrepareForScriptLoading(NULL, true, false, builtin_lib);
   CHECK_RESULT(result);
 
   ASSERT(Dart_IsServiceIsolate(isolate));
   if (!VmService::Setup(DEFAULT_VM_SERVICE_SERVER_IP,
@@ skipping 19 matching lines @@
 
 
 /* DISALLOW_ALLOCATION */
 void VmServiceServer::operator delete(void* pointer)  {
   fprintf(stderr, "unreachable code\n");
   abort();
 }
 
 }  // namespace bin
 }  // namespace dart