Roll Dart SDK from 74c5ccfd9140 to 9ae62f884cd9 (1 revision) (#165944)

https://dart.googlesource.com/sdk.git/+log/74c5ccfd9140..9ae62f884cd9

2025-03-26 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.8.0-226.0.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,jimgraham@google.com on the revert to
ensure that a human
is aware of the problem.

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https://github.com/flutter/flutter/issues/new/choose

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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

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': '74c5ccfd91404bd64df1421e46d6993018e5cdeb',
+  'dart_revision': '9ae62f884cd93d1a7f268529cbf2b0455bdf0479',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py