[Fasta] Save parent in TypeDeclarationBuilder

pkg/front_end/lib/src/fasta/builder/type_declaration_builder.dart

Index: pkg/front_end/lib/src/fasta/builder/type_declaration_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/builder/type_declaration_builder.dart b/pkg/front_end/lib/src/fasta/builder/type_declaration_builder.dart
index 2b14e59be673799a15ae4f56dd4cbcd401bf6a03..e0cc77191e7c5e9c3597e75a2def9e76abe4f584 100644
--- a/pkg/front_end/lib/src/fasta/builder/type_declaration_builder.dart
+++ b/pkg/front_end/lib/src/fasta/builder/type_declaration_builder.dart
@@ -23,7 +23,7 @@ abstract class TypeDeclarationBuilder<T extends TypeBuilder, R>
   final String relativeFileUri;
 
   TypeDeclarationBuilder(
-      this.metadata, this.modifiers, this.name, Builder parent, int charOffset,
+      this.metadata, this.modifiers, this.name, this.parent, int charOffset,
       [Uri fileUri])
       : fileUri = fileUri ?? parent?.fileUri,
         relativeFileUri =