Roll Dart SDK from d59cb89 to 934cc98 (1 revision)

https://dart.googlesource.com/sdk.git/+log/d59cb89f73fe..934cc986926d

2021-05-12 dart-luci-ci-builder@dart-ci.iam.gserviceaccount.com Version 2.14.0-109.0.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 on the revert to ensure that a human
is aware of the problem.

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/master/autoroll/README.md

Author: skia-flutter-autoroll

DEPS

@@ -35,7 +35,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': 'd59cb89f73feced2597fdb412e472efb9477fbd5',
+  'dart_revision': '934cc986926dbb62502ef043f30a28c4369a9d5f',
 
   # 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: bd36d5e2c4cfe369a6b4671db1eb1c06
+Signature: 8ca4d6aef83ed3ea1293e6cec51c95aa
 
 UNUSED LICENSES: