Set tests that have mixin errors as 2.19.

Mark tests that contain errors about using a class as a mixin to use
language version 2.19 where that's not an error.

This may not fix all of the tests because it's the language version of
the library where the class is declared that matters, not where the
class is used as a mixin. But most tests have all of their declarations
in the same library, so this should fix most.

Change-Id: I910439ebd2f10f731418dc588b7e4619a0841c16
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/285923
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Jake Macdonald <jakemac@google.com>

tests/corelib/map_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 library map_test;
 
 import "package:expect/expect.dart";

tests/corelib/map_update_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 import 'dart:collection';
 import 'dart:convert' show json;

tests/language/abstract/getter2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class A {

tests/language/call/method_as_cast_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_instance_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_local_runtime_1_test.dart

@@ -4,6 +4,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_local_runtime_2_test.dart

@@ -4,6 +4,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_local_runtime_3_test.dart

@@ -4,6 +4,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_local_runtime_4_test.dart

@@ -4,6 +4,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_local_runtime_test.dart

@@ -4,6 +4,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_local_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_static_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_implicit_invoke_top_level_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/call/method_is_check_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program to test arithmetic operations.
 
 import "package:expect/expect.dart";

tests/language/class/override_inference_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that inheriting types on overriding members work as specified.
 
 // ignore_for_file: unused_local_variable

tests/language/const/constructor_mixin2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class Mixin {
   var nonFinalField;
 }

tests/language/const/constructor_mixin3_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class Mixin {}
 
 class A {

tests/language/const/constructor_mixin_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class Mixin {}
 
 class A {

tests/language/constructor/missing_initializer_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that it is an error for a class with no generative constructors to
 // have a final instance variable without an initializing expression, except
 // if it is `abstract` or `external`. The latter also holds in a class with

tests/language/constructor/with_mixin_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test super constructor invocation with mixins.
 // Regression test for issue dartbug.com/22604
 

tests/language/covariant/setter_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class A {}

tests/language/covariant/subtyping_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'package:expect/expect.dart';
 
 class Fields<T> {

tests/language/covariant/subtyping_with_mixin_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'package:expect/expect.dart';
 
 class A {}

tests/language/covariant_override/tear_off_type_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 // If a parameter is directly or indirectly a covariant override, its type in

tests/language/deferred/inheritance_constraints_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 import "inheritance_constraints_lib.dart" deferred as lib;
 

tests/language/deferred/mixin_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'package:expect/expect.dart';
 import 'package:async_helper/async_helper.dart';
 

tests/language/generic/constructor_mixin2_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that parameter types are checked correctly in the face of
 // mixin application upon a generic constructor.
 

tests/language/generic/constructor_mixin2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that parameter types are checked correctly in the face of
 // mixin application upon a generic constructor.
 

tests/language/generic/constructor_mixin3_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that parameter types are checked correctly in the face of
 // mixin application upon a generic constructor.
 

tests/language/generic/constructor_mixin3_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that parameter types are checked correctly in the face of
 // mixin application upon a generic constructor.
 

tests/language/generic/constructor_mixin_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that parameter types are checked correctly in the face of
 // mixin application upon a generic constructor.
 

tests/language/generic/constructor_mixin_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that parameter types are checked correctly in the face of
 // mixin application upon a generic constructor.
 

tests/language/generic/field_mixin2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that generic types in mixins are handled.
 
 import 'package:expect/expect.dart';

tests/language/generic/field_mixin3_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that generic types in mixins are handled.
 
 import 'package:expect/expect.dart';

tests/language/generic/field_mixin4_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that generic types in mixins are handled.
 
 import 'package:expect/expect.dart';

tests/language/generic/field_mixin5_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that generic types in mixins are handled.
 
 import 'package:expect/expect.dart';

tests/language/generic/field_mixin6_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that generic types in mixins are handled.
 
 import 'package:expect/expect.dart';

tests/language/generic/field_mixin6_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that generic types in mixins are handled.
 
 import 'package:expect/expect.dart';

tests/language/generic/field_mixin_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that generic types in mixins are handled.
 
 import 'package:expect/expect.dart';

tests/language/generic/instanceof5_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test that instanceof works correctly with type variables.
 
 import "package:expect/expect.dart";

tests/language/generic/method_types_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'package:expect/expect.dart';
 
 typedef Convert1<O> = O Function<I>(I input);

tests/language/malformed/inheritance_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Tests that malformed types used in extends, implements, and with clauses
 // cause compile-time errors.
 

tests/language/mixin/abstract_getter_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'package:expect/expect.dart';
 
 abstract class B {

tests/language/mixin/accessor_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Regression test case for DDC bug where if a getter/setter is mixed in
 // without a corresponding getter/setter, DDC fails to install a the
 // corresponding getter/setter that calls super.

tests/language/mixin/and_extension_member_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'dart:collection';
 import 'package:expect/expect.dart';
 

tests/language/mixin/black_listed_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Check mixin of black-listed types.
 
 import 'package:expect/expect.dart';

tests/language/mixin/bound_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 // library abstract_expressions;

tests/language/mixin/cyclic_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test for cyclicity check on named mixin applications.
 
 class A<T> {}

tests/language/mixin/cyclic_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test for cyclicity check on named mixin applications.
 
 class A<T> {}

tests/language/mixin/extends_field_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S {

tests/language/mixin/extends_is_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S {}

tests/language/mixin/extends_method_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S {

tests/language/mixin/factory_constructor_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class Base {

tests/language/mixin/field_initializer_test.dart

@@ -1,6 +1,11 @@
 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // 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.
+
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Dart test program for testing throw statement
 
 import 'package:expect/expect.dart';

tests/language/mixin/field_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S {

tests/language/mixin/forwarding_constructor1_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 abstract class Mixin1 {

tests/language/mixin/forwarding_constructor2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 abstract class Mixin1 {

tests/language/mixin/forwarding_constructor3_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Verify that a named mixin constructor forwards to the corresponding named
 // base class constructor.
 

tests/language/mixin/forwarding_constructor4_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Verify that a forwarding constructor is generated even when there is an
 // optional parameter.
 

tests/language/mixin/forwarding_stub_call_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test for calling a method for which a forwarding super stub has been
 // inserted.
 

tests/language/mixin/forwarding_stub_set_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test for assigning to a field for which a forwarding super stub has been
 // inserted.
 

tests/language/mixin/forwarding_stub_tearoff_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Test for tearing off a method for which a forwarding super stub has been
 // inserted.
 

tests/language/mixin/generic_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S<T> {

tests/language/mixin/getter_regression_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Regression test case for dart2js bug where the getter for y wasn't
 // properly mixed in.
 

tests/language/mixin/illegal_constructor_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class M0 {
   factory M0(a, b, c) => throw "uncalled";
   factory M0.named() => throw "uncalled";

tests/language/mixin/illegal_constructor_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class M0 {
   factory M0(a, b, c) => throw "uncalled";
   factory M0.named() => throw "uncalled";

tests/language/mixin/illegal_cycles_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class M {}
 class M0 extends Object with M0 { }
 //    ^^

tests/language/mixin/illegal_static_access_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S {

tests/language/mixin/illegal_static_access_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S {

tests/language/mixin/illegal_super_use_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class M {}

tests/language/mixin/illegal_super_use_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class M {}

tests/language/mixin/illegal_superclass_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class S0 {}
 
 class S1 extends Object {}

tests/language/mixin/illegal_superclass_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class S0 {}
 
 class S1 extends Object {}

tests/language/mixin/illegal_syntax_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class S { }
 class G<T> { }
 class M { }

tests/language/mixin/implements2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Regression test for named mixin applications with implements clause.
 
 class A {}

tests/language/mixin/implements_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 abstract class I0 {

tests/language/mixin/implicit_covariance_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'package:expect/expect.dart';
 
 abstract class A<T> {

tests/language/mixin/inference_mixin_field_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class Mixin {

tests/language/mixin/interface_check_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class Thing {}
 
 class SubThing extends Thing {

tests/language/mixin/invalid_bound2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class S0<T> {}
 
 class S<U extends num, V extends U> extends S0<String> {}

tests/language/mixin/invalid_bound_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 class S0<T> {}
 
 class S<T extends num> extends S0<String> {}

tests/language/mixin/invalid_override_in_mixin_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'package:expect/expect.dart';
 
 class A {

tests/language/mixin/invalid_override_in_mixin_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import 'package:expect/expect.dart';
 
 class A {

tests/language/mixin/is_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S {}

tests/language/mixin/issue10216_2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class M1 = Object with M0;

tests/language/mixin/issue10216_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class A {

tests/language/mixin/lib_extends_field_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 library mixin_lib_extends_field_test;
 
 import 'package:expect/expect.dart';

tests/language/mixin/lib_extends_method_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 library mixin_lib_extends_method_test;
 
 import "package:expect/expect.dart";

tests/language/mixin/method_override_runtime_test.dart

@@ -5,6 +5,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Signature conformance test.
 abstract class CII {
   int id(int x);

tests/language/mixin/method_override_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 // Signature conformance test.
 abstract class CII {
   int id(int x);

tests/language/mixin/method_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class S {

tests/language/mixin/mixin2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class M<T> {

tests/language/mixin/mixin3_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class M<T> {

tests/language/mixin/mixin4_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class I<T> {}

tests/language/mixin/mixin5_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class I<T> {}

tests/language/mixin/mixin6_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class I<T> {}

tests/language/mixin/mixin7_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class I<T> {}

tests/language/mixin/mixin_bound2_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class I<T> {}

tests/language/mixin/mixin_bound_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class I<T> {}

tests/language/mixin/mixin_test.dart

@@ -2,6 +2,10 @@
 // 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.
 
+// TODO(51557): Decide if the mixins being applied in this test should be
+// "mixin", "mixin class" or the test should be left at 2.19.
+// @dart=2.19
+
 import "package:expect/expect.dart";
 
 class M1 {