Roll Dart SDK from 5ccf755 to f6a43e5 (1 revision)

https://dart.googlesource.com/sdk.git/+log/5ccf755b37a4..f6a43e5eb71d

2021-11-06 [email protected] Version 2.15.0-293.0.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 [email protected],[email protected] 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

@@ -39,7 +39,7 @@ 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': '5ccf755b37a48bb59df5ba2e0fa5f5cafee59548',
+  'dart_revision': 'f6a43e5eb71d0168b5db23bb4b31d3f58029981e',
 
   # 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: 7870f11bd900421c426bcaf4a8ffd368
+Signature: 3b35dea9c9c6992f42ee28043d79f737
 
 UNUSED LICENSES: