| Index: pkg/front_end/lib/src/fasta/source/source_library_builder.dart | 
| diff --git a/pkg/front_end/lib/src/fasta/source/source_library_builder.dart b/pkg/front_end/lib/src/fasta/source/source_library_builder.dart | 
| index 3002f4f0dd94d0ced183de99851864134c5fad3b..119684a9c53d427dd48a7a65a4c93360d6a3d791 100644 | 
| --- a/pkg/front_end/lib/src/fasta/source/source_library_builder.dart | 
| +++ b/pkg/front_end/lib/src/fasta/source/source_library_builder.dart | 
| @@ -207,6 +207,7 @@ abstract class SourceLibraryBuilder<T extends TypeBuilder, R> | 
| int charOffset); | 
|  | 
| void addNamedMixinApplication( | 
| +      String documentationComment, | 
| List<MetadataBuilder> metadata, | 
| String name, | 
| List<TypeVariableBuilder> typeVariables, | 
|  |