Roll Dart SDK from 21402561f6d3 to 419aef963b5a (1 revision) (#55320)

https://dart.googlesource.com/sdk.git/+log/21402561f6d3..419aef963b5a

2024-09-20 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version 3.6.0-270.0.dev

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dart-sdk-flutter-engine
Please CC chinmaygarde@google.com,dart-vm-team@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter Engine: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Author: skia-flutter-autoroll

DEPS

@@ -56,7 +56,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/main/DEPS
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '21402561f6d354bc87a0ded80e366b5a13d0ff96',
+  'dart_revision': '419aef963b5a7c47671856985abb42472fb2ba9c',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

ci/licenses_golden/excluded_files

@@ -1488,6 +1488,7 @@
 ../../../flutter/third_party/dart/runtime/vm/compiler/backend/flow_graph_test.cc
 ../../../flutter/third_party/dart/runtime/vm/compiler/backend/il_test.cc
 ../../../flutter/third_party/dart/runtime/vm/compiler/backend/inliner_test.cc
+../../../flutter/third_party/dart/runtime/vm/compiler/backend/linearscan_test.cc
 ../../../flutter/third_party/dart/runtime/vm/compiler/backend/locations_helpers_test.cc
 ../../../flutter/third_party/dart/runtime/vm/compiler/backend/loops_test.cc
 ../../../flutter/third_party/dart/runtime/vm/compiler/backend/memory_copy_test.cc

ci/licenses_golden/licenses_dart

@@ -1,4 +1,4 @@
-Signature: bcb5f7250b8efafb0b2716f4734b6ca9
+Signature: b810103cb1efde7bc9eb22db7aceece9
 
 ====================================================================================================
 LIBRARY: dart
@@ -4785,7 +4785,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/6c85a403add746ec6ac9e92e4a13d55daf0148ff
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/419aef963b5a7c47671856985abb42472fb2ba9c
 /third_party/fallback_root_certificates/
 
 ====================================================================================================

sky/packages/sky_engine/LICENSE

@@ -32054,7 +32054,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/21402561f6d354bc87a0ded80e366b5a13d0ff96
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/419aef963b5a7c47671856985abb42472fb2ba9c
 /third_party/fallback_root_certificates/
 
 --------------------------------------------------------------------------------