Service isolate rework

runtime/bin/dartutils.h

Index: runtime/bin/dartutils.h
diff --git a/runtime/bin/dartutils.h b/runtime/bin/dartutils.h
index 9b6557cbb2d214f9df52af3ace9e5d61c216642b..bc7041a6006cf15b58f231f23569c9ea80872040 100644
--- a/runtime/bin/dartutils.h
+++ b/runtime/bin/dartutils.h
@@ -124,8 +124,14 @@ class DartUtils {
                                        Dart_Handle url);
   static Dart_Handle LoadScript(const char* script_uri,
                                 Dart_Handle builtin_lib);
+  static void PrepareBuiltinLibrary(Dart_Handle builtin_lib,
+                                    const char* package_root);
+  static void PrepareCoreLibrary(Dart_Handle builtin_lib);
+  static void PrepareAsyncLibrary(Dart_Handle async_lib,
+                                  Dart_Handle io_lib);
   static Dart_Handle PrepareForScriptLoading(const char* package_root,
                                              Dart_Handle builtin_lib);
+  static void SetupIOLibrary(const char* script_uri);
 
   static bool PostNull(Dart_Port port_id);
   static bool PostInt32(Dart_Port port_id, int32_t value);