| Index: sdk/lib/_internal/compiler/implementation/source_file_provider.dart | 
| diff --git a/sdk/lib/_internal/compiler/implementation/source_file_provider.dart b/sdk/lib/_internal/compiler/implementation/source_file_provider.dart | 
| index 4157fc9e45175efcba141395e9aa0afd88c51f39..ffd94c7791e04d4dd558583ca943cd85994c05a1 100644 | 
| --- a/sdk/lib/_internal/compiler/implementation/source_file_provider.dart | 
| +++ b/sdk/lib/_internal/compiler/implementation/source_file_provider.dart | 
| @@ -45,7 +45,7 @@ class SourceFileProvider { | 
| dartCharactersRead += source.length; | 
| sourceFiles[resourceUri.toString()] = | 
| new SourceFile(relativize(cwd, resourceUri, isWindows), source); | 
| -    return new Future.immediate(source); | 
| +    return new Future.value(source); | 
| } | 
| } | 
|  | 
|  |