Roll Dart SDK from 65fe9906a916 to 30ea8c4e622f (2 revisions) (#166181)

https://dart.googlesource.com/sdk.git/+log/65fe9906a916..30ea8c4e622f

2025-03-29 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.8.0-240.0.dev
2025-03-28 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.8.0-239.0.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.

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/+/59e617af38f67816854f4813e47c3b57ab47cf3a

DEPS

diff --git a/DEPS b/DEPS
index c907a4e..a1910a4 100644
--- a/DEPS
+++ b/DEPS
@@ -240,7 +240,7 @@
 deps = {
   'flutter/engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + '865dcc51309b22cb1fcbc375d2daf2705a97c98a',
 
-  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + '4617b0c84287017885cb3afb6d5f5770771317d8',
+  'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + '59e617af38f67816854f4813e47c3b57ab47cf3a',
 
   '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 1a72827..a5db3c6 100644
--- a/commits.json
+++ b/commits.json
@@ -1,4 +1,4 @@
 {
-  "flutter":"4617b0c84287017885cb3afb6d5f5770771317d8",
+  "flutter":"59e617af38f67816854f4813e47c3b57ab47cf3a",
   "flutter/engine/src/flutter/third_party/dart":"865dcc51309b22cb1fcbc375d2daf2705a97c98a"
 }
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