Change the Dart API call Dart_FInalizeLoading to accept an additional argument

runtime/include/dart_api.h

 /*
  * 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.
  */
 
 #ifndef INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
@@ skipping 2652 matching lines @@
  * \param library A library
  * \param url A url identifying the origin of the patch source
  * \param source A string of Dart patch source
  */
 DART_EXPORT Dart_Handle Dart_LibraryLoadPatch(Dart_Handle library,
                                               Dart_Handle url,
                                               Dart_Handle patch_source);
 
 
 /**
- * Indicates that all outstanding load requests have been satisfied,
- * finalizing classes and completing deferred library futures.
+ * Indicates that all outstanding load requests have been satisfied.
+ * This finalizes all the new classes loaded and optionally completes
+ * deferred library futures.
  *
  * Requires there to be a current isolate.
  *
- * \return Success if all deferred library futures are completed.
- *   Otherwise, returns an error.
+ * \param complete_futures Specify true if all deferred library
+ *  futures should be completed, false otherwise.
+ *
+ * \return Success if all classes have been finalized and deferred library
+ *   futures are completed. Otherwise, returns an error.
  */
-DART_EXPORT Dart_Handle Dart_FinalizeLoading();
+DART_EXPORT Dart_Handle Dart_FinalizeLoading(bool complete_futures);
 
 
 /*
  * =====
  * Peers
  * =====
  */
 
 /**
  * The peer field is a lazily allocated field intendend for storage of
@@ skipping 118 matching lines @@
  * NOTE: If multiple callbacks with the same name are registered, only the
  * last callback registered will be remembered.
  */
 DART_EXPORT void Dart_RegisterRootServiceRequestCallback(
     const char* name,
     Dart_ServiceRequestCallback callback,
     void* user_data);
 
 
 #endif  /* INCLUDE_DART_API_H_ */  /* NOLINT */