| Index: pkg/front_end/lib/src/fasta/builder/procedure_builder.dart | 
| diff --git a/pkg/front_end/lib/src/fasta/builder/procedure_builder.dart b/pkg/front_end/lib/src/fasta/builder/procedure_builder.dart | 
| index fb4409225ba97b14cbc08f8a4b50f9729a8d1222..f9e601c118511826656bf0abe708729379bcded6 100644 | 
| --- a/pkg/front_end/lib/src/fasta/builder/procedure_builder.dart | 
| +++ b/pkg/front_end/lib/src/fasta/builder/procedure_builder.dart | 
| @@ -54,7 +54,7 @@ abstract class ProcedureBuilder<T extends TypeBuilder> extends MemberBuilder { | 
|  | 
| bool get isFactory => identical(ProcedureKind.Factory, kind); | 
|  | 
| -  void set body(statement); | 
| +  void set body(covariant statement); | 
|  | 
| /// This is the formal parameter scope as specified in the Dart Programming | 
| /// Language Specifiction, 4th ed, section 9.2. | 
|  |