isolates refactor: this change introduces 'dart:isolate' as a library. This is a

runtime/vm/dart_api_impl_test.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 "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
@@ skipping 3407 matching lines @@
   // Create a port with a bogus handler.
   Dart_Port error_port = Dart_NewNativePort("Foo", NULL, true);
   EXPECT_EQ(kIllegalPort, error_port);
 
   // Create the port w/o a current isolate, just to make sure that works.
   Dart_Port port_id1 =
       Dart_NewNativePort("Port123", NewNativePort_send123, true);
 
   TestIsolateScope __test_isolate__;
   const char* kScriptChars =
+      "#import('dart:isolate');\n"
       "void callPort(SendPort port) {\n"
       "    port.call(null).receive((message, replyTo) {\n"
       "      throw new Exception(message);\n"
       "    });\n"
       "}\n";
   Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
   Dart_EnterScope();
 
   // Create a port w/ a current isolate, to make sure that works too.
   Dart_Port port_id2 =
@@ skipping 36 matching lines @@
   // Delete the native ports.
   EXPECT(Dart_CloseNativePort(port_id1));
   EXPECT(Dart_CloseNativePort(port_id2));
 }
 
 
 static bool RunLoopTestCallback(const char* name_prefix,
                                 void* data, char** error) {
   const char* kScriptChars =
       "#import('builtin');\n"
+      "#import('dart:isolate');\n"
       "class MyIsolate extends Isolate {\n"
       "  MyIsolate() : super() { }\n"
       "  void main() {\n"
       "    port.receive((message, replyTo) {\n"
       "      if (message) {\n"
       "        throw new Exception('MakeChildExit');\n"
       "      } else {\n"
       "        replyTo.call('hello');\n"
       "        port.close();\n"
       "      }\n"
@@ skipping 239 matching lines @@
   // We should have received the expected number of interrupts.
   EXPECT_EQ(kInterruptCount, interrupt_count);
 
   // Give the spawned thread enough time to properly exit.
   Isolate::SetInterruptCallback(saved);
 }
 
 #endif  // defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64).
 
 }  // namespace dart