| Index: runtime/lib/lib_prefix.dart | 
| diff --git a/runtime/lib/lib_prefix.dart b/runtime/lib/lib_prefix.dart | 
| index 269542660d759ae7577f435d2f3162e7cec4dd68..f457b020f8a722e43685eee8787832d7b1c31158 100644 | 
| --- a/runtime/lib/lib_prefix.dart | 
| +++ b/runtime/lib/lib_prefix.dart | 
| @@ -8,7 +8,7 @@ import "dart:isolate"; | 
| // This type corresponds to the VM-internal class LibraryPrefix. | 
| class _LibraryPrefix { | 
| bool _load() native "LibraryPrefix_load"; | 
| -  Error _loadError() native "LibraryPrefix_loadError"; | 
| +  Object _loadError() native "LibraryPrefix_loadError"; | 
| bool isLoaded() native "LibraryPrefix_isLoaded"; | 
| bool _invalidateDependentCode() | 
| native "LibraryPrefix_invalidateDependentCode"; | 
|  |