Fix for issue 19817

runtime/bin/vmservice_impl.cc

 // Copyright (c) 2013, 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_impl.h"
 
 #include "include/dart_api.h"
 
 #include "bin/builtin.h"
 #include "bin/dartutils.h"
@@ skipping 97 matching lines @@
   }
   Dart_EnterIsolate(isolate);
   Dart_EnterScope();
   // Install our own library tag handler.
   Dart_SetLibraryTagHandler(LibraryTagHandler);
   Dart_Handle result;
   Dart_Handle library = LoadScript(kVMServiceIOLibraryScriptResourceName);
   // Expect a library.
   ASSERT(library != Dart_Null());
   SHUTDOWN_ON_ERROR(library);
+  result = Dart_FinalizeLoading(false);
+  ASSERT(!Dart_IsError(result));
   Dart_ExitScope();
   Dart_ExitIsolate();
   bool retval = Dart_IsolateMakeRunnable(isolate);
   if (!retval) {
     Dart_EnterIsolate(isolate);
     Dart_ShutdownIsolate();
     error_msg_ = "Invalid isolate state - Unable to make it runnable.";
     return false;
   }
 
@@ skipping 171 matching lines @@
     printf("Service exited with an error:\n%s\n", Dart_GetError(result));
   }
   Dart_ExitScope();
   Dart_ExitIsolate();
 }
 
 
 
 }  // namespace bin
 }  // namespace dart