Roll Dart SDK from 617e70c95f5b to 34a2a208820f (1 revision)

https://dart.googlesource.com/sdk.git/+log/617e70c95f5b..34a2a208820f

2023-01-02 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version 3.0.0-78.0.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 dart-vm-team@google.com,garyq@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://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

Author: skia-flutter-autoroll

DEPS

@@ -48,7 +48,7 @@ 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': '617e70c95f5baa5fa6909d65721ba3ea0aa2c303',
+  'dart_revision': '34a2a208820f1b754820cf0539c0bc3c5bdc84d1',
 
   # 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/licenses_third_party

@@ -1,4 +1,4 @@
-Signature: af42eb900d317d9812456d1da10ffb70
+Signature: a18e7db5f61f4b4b42dd4545b79efb32
 
 ====================================================================================================
 LIBRARY: angle