[co19] Roll co19 to 8a302a4666a9adae63b52fb49f37e7407935f13c

2026-05-22 sgrekhov22@gmail.com Fixes dart-lang/co19#3810. Fix typos in static_member_and_instance_member_t06.dart (dart-lang/co19#3811)
2026-05-21 sgrekhov22@gmail.com dart-lang/co19#2303. Add missing `Directory.create(Sync)` tests (dart-lang/co19#3806)
2026-05-21 sgrekhov22@gmail.com dart-lang/co19#2303. Make `Link.create()` tests stronger (dart-lang/co19#3809)
2026-05-21 sgrekhov22@gmail.com dart-lang/co19#2303. Make `Link.createSync()` tests stronger (dart-lang/co19#3808)
2026-05-21 sgrekhov22@gmail.com dart-lang/co19#2119. Remove unused imports (dart-lang/co19#3807)
2026-05-20 sgrekhov22@gmail.com Fixes dart-lang/co19#3803. Updated tests for abstract variable augmenting a getter/setter (dart-lang/co19#3804)
2026-05-20 sgrekhov22@gmail.com dart-lang/co19#2119. Remove invalid test attributeChanged_A01_t01.dart (dart-lang/co19#3805)
2026-05-19 sgrekhov22@gmail.com dart-lang/co19#2303. Refactoring. Make names of auxiliary functions more clear (dart-lang/co19#3802)
2026-05-18 sgrekhov22@gmail.com dart-lang/co19#2303. Add more tests for File.create(Sync) method (dart-lang/co19#3797)
2026-05-18 sgrekhov22@gmail.com Fixes dart-lang/co19#3799. Update expected errors in applying_augmentations_A04_t03.dart (dart-lang/co19#3801)
2026-05-12 sgrekhov22@gmail.com Fixes dart-lang/co19#2162. Add more member conflict tests and test cases. (dart-lang/co19#3796)
2026-05-12 sgrekhov22@gmail.com Add tests for LUB calculation (dart-lang/co19#3790)
2026-05-12 sgrekhov22@gmail.com Add flow analysis test for `await Never` (dart-lang/co19#3795)
2026-05-11 sgrekhov22@gmail.com Fixes dart-lang/co19#3791. Update error expectations in initializers_t04.dart (dart-lang/co19#3793)
2026-05-08 sgrekhov22@gmail.com Fixes dart-lang/co19#3788. App tests for `FileSystemEntity.parentOf()` (dart-lang/co19#3789)

R=athom@google.com, eernst@google.com

Cq-Include-Trybots: luci.dart.try:analyzer-linux-release-try,dart2js-minified-linux-d8-try
Change-Id: I50c3d1b1cb62b4cd7b370591c9131a3ff6b61d38
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/505780
Auto-Submit: Sergey Grekhov <sgrekhov22@gmail.com>
Reviewed-by: Alexander Thomas <athom@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>

DEPS

@@ -59,7 +59,7 @@ vars = {
 
   # co19 is a cipd package automatically generated for each co19 commit.
   # Use tests/co19/update.sh to update this hash.
-  "co19_rev": "266d9f242d9ddcbb4be96995cd16839b8e577cf3",
+  "co19_rev": "8a302a4666a9adae63b52fb49f37e7407935f13c",
 
   # The internal benchmarks to use. See go/dart-benchmarks-internal
   "benchmarks_internal_rev": "6058722b4643b62c757dadc006f00bc3e14c4380",

tests/co19/co19-co19.status

@@ -2,4 +2,3 @@
 # 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.
 
-LibTest/html/IFrameElement/attributeChanged_A01_t01: SkipByDesign # uses deprecated custom element constructors, see https://github.com/dart-lang/sdk/issues/53264