diff --git a/pkgs/intl_translation/lib/src/message_rewriter.dart b/pkgs/intl_translation/lib/src/message_rewriter.dart
index 0622e8ee..baf95a79 100644
--- a/pkgs/intl_translation/lib/src/message_rewriter.dart
+++ b/pkgs/intl_translation/lib/src/message_rewriter.dart
@@ -4,6 +4,8 @@
 
 /// Code to rewrite Intl.message calls adding the name and args parameters
 /// automatically, primarily used by the transformer.
+library;
+
 import 'package:analyzer/dart/analysis/utilities.dart';
 
 import '../extract_messages.dart';
diff --git a/pkgs/intl_translation/lib/src/messages/submessages/gender.dart b/pkgs/intl_translation/lib/src/messages/submessages/gender.dart
index 3be28549..b1bfed96 100644
--- a/pkgs/intl_translation/lib/src/messages/submessages/gender.dart
+++ b/pkgs/intl_translation/lib/src/messages/submessages/gender.dart
@@ -15,8 +15,8 @@ class Gender extends SubMessage {
   /// clauses. Each clause is expected to be a list whose first element is a
   /// variable name and whose second element is either a [String] or
   /// a list of strings and [Message] or [VariableSubstitution].
-  Gender.from(String mainArgument, List clauses, [Message? parent])
-      : super.from(mainArgument, clauses, parent);
+  Gender.from(super.mainArgument, super.clauses, [Message? super.parent])
+      : super.from();
 
   Message? female;
   Message? male;
diff --git a/pkgs/intl_translation/lib/src/messages/submessages/plural.dart b/pkgs/intl_translation/lib/src/messages/submessages/plural.dart
index dad36c92..351396ef 100644
--- a/pkgs/intl_translation/lib/src/messages/submessages/plural.dart
+++ b/pkgs/intl_translation/lib/src/messages/submessages/plural.dart
@@ -7,8 +7,8 @@ import 'submessage.dart';
 
 class Plural extends SubMessage {
   Plural() : super.from('', [], null);
-  Plural.from(String mainArgument, List clauses, [Message? parent])
-      : super.from(mainArgument, clauses, parent);
+  Plural.from(super.mainArgument, super.clauses, [Message? super.parent])
+      : super.from();
 
   Message? zero;
   Message? one;
diff --git a/pkgs/intl_translation/lib/src/messages/submessages/select.dart b/pkgs/intl_translation/lib/src/messages/submessages/select.dart
index b92ef724..dd4ba5d3 100644
--- a/pkgs/intl_translation/lib/src/messages/submessages/select.dart
+++ b/pkgs/intl_translation/lib/src/messages/submessages/select.dart
@@ -17,8 +17,8 @@ class Select extends SubMessage {
   /// clauses. Each clause is expected to be a list whose first element is a
   /// variable name and whose second element is either a String or
   /// a list of strings and [Message]s or [VariableSubstitution]s.
-  Select.from(String mainArgument, List clauses, [Message? parent])
-      : super.from(mainArgument, clauses, parent);
+  Select.from(super.mainArgument, super.clauses, [Message? super.parent])
+      : super.from();
 
   Map<String, Message> cases = <String, Message>{};
 
diff --git a/pkgs/intl_translation/pubspec.yaml b/pkgs/intl_translation/pubspec.yaml
index ed43d22f..860f68bf 100644
--- a/pkgs/intl_translation/pubspec.yaml
+++ b/pkgs/intl_translation/pubspec.yaml
@@ -7,7 +7,7 @@ description: >-
 repository: https://github.com/dart-lang/i18n/tree/main/pkgs/intl_translation
 
 environment:
-  sdk: '>=2.18.0 <3.0.0'
+  sdk: '>=2.19.0 <4.0.0'
 
 dependencies:
   analyzer: ^6.3.0
diff --git a/pkgs/intl_translation/test/generate_localized/code_map_test.dart b/pkgs/intl_translation/test/generate_localized/code_map_test.dart
index 3ca1aafd..8c180f20 100644
--- a/pkgs/intl_translation/test/generate_localized/code_map_test.dart
+++ b/pkgs/intl_translation/test/generate_localized/code_map_test.dart
@@ -3,6 +3,8 @@
 // BSD-style license that can be found in the LICENSE file.
 
 /// An application using the code map messages.
+library;
+
 import 'package:intl/intl.dart';
 import 'package:test/test.dart';
 
diff --git a/pkgs/intl_translation/test/message_extraction/examples_parsing_test.dart b/pkgs/intl_translation/test/message_extraction/examples_parsing_test.dart
index 471956c7..befed744 100644
--- a/pkgs/intl_translation/test/message_extraction/examples_parsing_test.dart
+++ b/pkgs/intl_translation/test/message_extraction/examples_parsing_test.dart
@@ -2,10 +2,14 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-@Timeout(Duration(seconds: 180))
-
 /// Test for parsing the examples argument from an Intl.message call. Very
 /// minimal so far.
+library;
+
+
+
+@Timeout(Duration(seconds: 180))
+
 
 import 'dart:io';
 
diff --git a/pkgs/intl_translation/test/message_extraction/message_extraction_flutter_test.dart b/pkgs/intl_translation/test/message_extraction/message_extraction_flutter_test.dart
index 816d185a..b712fff9 100644
--- a/pkgs/intl_translation/test/message_extraction/message_extraction_flutter_test.dart
+++ b/pkgs/intl_translation/test/message_extraction/message_extraction_flutter_test.dart
@@ -2,10 +2,14 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-@Timeout(Duration(seconds: 180))
-
 /// A test for message extraction and code generation using generated
 /// JSON rather than functions
+library;
+
+
+
+@Timeout(Duration(seconds: 180))
+
 
 import 'package:test/test.dart';
 
diff --git a/pkgs/intl_translation/test/message_extraction/message_extraction_json_test.dart b/pkgs/intl_translation/test/message_extraction/message_extraction_json_test.dart
index a2c7d521..213ec760 100644
--- a/pkgs/intl_translation/test/message_extraction/message_extraction_json_test.dart
+++ b/pkgs/intl_translation/test/message_extraction/message_extraction_json_test.dart
@@ -2,10 +2,14 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-@Timeout(Duration(seconds: 180))
-
 /// A test for message extraction and code generation using generated
 /// JSON rather than functions
+library;
+
+
+
+@Timeout(Duration(seconds: 180))
+
 
 import 'package:test/test.dart';
 
diff --git a/pkgs/intl_translation/test/two_components/component.dart b/pkgs/intl_translation/test/two_components/component.dart
index 737927c4..8ffa360b 100644
--- a/pkgs/intl_translation/test/two_components/component.dart
+++ b/pkgs/intl_translation/test/two_components/component.dart
@@ -4,6 +4,8 @@
 
 /// A component which should have its own separate messages, with their own
 /// translations.
+library;
+
 import 'package:intl/intl.dart';
 
 import 'component_messages_all.dart';
diff --git a/pkgs/intl_translation/test/two_components/initialize_child_test.dart b/pkgs/intl_translation/test/two_components/initialize_child_test.dart
index e56cb349..106b6ffc 100644
--- a/pkgs/intl_translation/test/two_components/initialize_child_test.dart
+++ b/pkgs/intl_translation/test/two_components/initialize_child_test.dart
@@ -7,6 +7,8 @@
 /// This is not actually related to the two components testing, but it's
 /// convenient to put it here because there's already a hard-coded
 /// message here.
+library;
+
 import 'package:intl/intl.dart';
 import 'package:test/test.dart';
 
diff --git a/pkgs/intl_translation/test/two_components/main_app_test.dart b/pkgs/intl_translation/test/two_components/main_app_test.dart
index 262ad482..98d55822 100644
--- a/pkgs/intl_translation/test/two_components/main_app_test.dart
+++ b/pkgs/intl_translation/test/two_components/main_app_test.dart
@@ -3,6 +3,8 @@
 // BSD-style license that can be found in the LICENSE file.
 
 /// An application using the component
+library;
+
 import 'package:intl/intl.dart';
 import 'package:test/test.dart';