Roll Dart SDK from a1e1e2770c1e to 8dc0ecee5adc (1 revision) (#168338)

https://dart.googlesource.com/sdk.git/+log/a1e1e2770c1e..8dc0ecee5adc

2025-05-05 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.9.0-97.0.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
Please CC dart-vm-team@google.com,jsimmons@google.com on the revert to
ensure that a human
is aware of the problem.

To file a bug in Flutter:
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
https://dart.googlesource.com/external/github.com/flutter/flutter/+/2ef49e7735905fca1f1c93bab9095d50027032d2

DEPS

diff --git a/DEPS b/DEPS
index 459e052..11ca98f 100644
--- a/DEPS
+++ b/DEPS
@@ -236,7 +236,7 @@
 deps = {
   'flutter/engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + 'cce62d31ea1a440ce95479e0022911df8189b74d',
 
-  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + '0f769d3e219920f564c2eda31f3155e2dd073289',
+  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + '2ef49e7735905fca1f1c93bab9095d50027032d2',
 
   'flutter/engine/src/flutter/third_party/depot_tools':
   Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '580b4ff3f5cd0dcaa2eacda28cefe0f45320e8f7',

commits.json

diff --git a/commits.json b/commits.json
index f111a8d..5ba3a64 100644
--- a/commits.json
+++ b/commits.json
@@ -1,4 +1,4 @@
 {
-  "flutter":"0f769d3e219920f564c2eda31f3155e2dd073289",
+  "flutter":"2ef49e7735905fca1f1c93bab9095d50027032d2",
   "flutter/engine/src/flutter/third_party/dart":"cce62d31ea1a440ce95479e0022911df8189b74d"
 }
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