| Index: pkg/front_end/lib/src/fasta/builder/class_builder.dart | 
| diff --git a/pkg/front_end/lib/src/fasta/builder/class_builder.dart b/pkg/front_end/lib/src/fasta/builder/class_builder.dart | 
| index f6af4e94ec6959d471b52439e6577ff9178c5d3f..a6e892aeda295e0a3b0b72f2edbb8d0a9710b164 100644 | 
| --- a/pkg/front_end/lib/src/fasta/builder/class_builder.dart | 
| +++ b/pkg/front_end/lib/src/fasta/builder/class_builder.dart | 
| @@ -60,6 +60,7 @@ abstract class ClassBuilder<T extends TypeBuilder, R> | 
| return library.partOfLibrary ?? library; | 
| } | 
|  | 
| +  @override | 
| int resolveConstructors(LibraryBuilder library) { | 
| if (constructorReferences == null) return 0; | 
| Scope scope = computeInstanceScope(library.scope); | 
|  |