Add a mid-sized integration test for the Dart Embedding Api which

runtime/vm/dart.cc

 // Copyright (c) 2011, 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 "vm/dart.h"
 
 #include "vm/code_index_table.h"
 #include "vm/flags.h"
 #include "vm/handles.h"
 #include "vm/heap.h"
@@ skipping 15 matching lines @@
 bool Dart::InitOnce(int argc, const char** argv,
                     Dart_IsolateInitCallback callback) {
   // TODO(iposva): Fix race condition here.
   if (vm_isolate_ != NULL) {
     return false;
   }
   OS::InitOnce();
   Flags::ProcessCommandLineFlags(argc, argv);
   VirtualMemory::InitOnce();
   Isolate::InitOnce();
+  PortMap::InitOnce();
   // Create the VM isolate and finish the VM initialization.
   {
     ASSERT(vm_isolate_ == NULL);
     vm_isolate_ = Isolate::Init();
     Zone zone(vm_isolate_);
     HandleScope handle_scope(vm_isolate_);
     Heap::Init(vm_isolate_);
     ObjectStore::Init(vm_isolate_);
     Object::InitOnce();
     StubCode::InitOnce();
-    PortMap::InitOnce();
     Scanner::InitOnce();
   }
   Isolate::SetCurrent(NULL);  // Unregister the VM isolate from this thread.
   Isolate::SetInitCallback(callback);
   return true;
 }
 
 
 Isolate* Dart::CreateIsolate() {
   // Create and initialize a new isolate.
@@ skipping 36 matching lines @@
 }
 
 
 void Dart::ShutdownIsolate() {
   Isolate* isolate = Isolate::Current();
   isolate->Shutdown();
   delete isolate;
 }
 
 }  // namespace dart