Roll Dart SDK from cf24b43cb643 to bb45c4186fb2 (2 revisions) (#177824)

https://dart.googlesource.com/sdk.git/+log/cf24b43cb643..bb45c4186fb2

2025-10-31 [email protected]
Version 3.11.0-83.0.dev
2025-10-31 [email protected]
Version 3.11.0-82.0.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 [email protected],[email protected] 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

Author: engine-flutter-autoroll

DEPS

@@ -57,7 +57,7 @@ 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': 'cf24b43cb643ab257784891378f4d7cd871934bb',
+  'dart_revision': 'bb45c4186fb29655d56455f6fc5f85f8e2d76287',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py