Roll Dart SDK from 7b6056f to f568598 (4 revisions)

https://dart.googlesource.com/sdk.git/+log/7b6056f9db7f..f568598a262e

2021-12-10 [email protected] Version 2.16.0-98.0.dev
2021-12-10 [email protected] Version 2.16.0-97.0.dev
2021-12-10 [email protected] Version 2.16.0-96.0.dev
2021-12-10 [email protected] Version 2.16.0-95.0.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': '7b6056f9db7f05bf0e182796b7fec8edbe9c8231',
+  'dart_revision': 'f568598a262ed53bcb03e40d2b6b9a6408189175',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -50,7 +50,7 @@ vars = {
   'dart_collection_rev': 'a4c941ab94044d118b2086a3f261c30377604127',
   'dart_devtools_rev': 'f2ede24a4ea666d4832d78b813c7d4e376aa77d0',
   'dart_intl_tag': '0.17.0-nullsafety',
-  'dart_linter_tag': '1.15.0',
+  'dart_linter_tag': '1.16.0',
   'dart_protobuf_rev': 'c1eb6cb51af39ccbaa1a8e19349546586a5c8e31',
   'dart_pub_rev': 'dcb6abac2d7d43258c03b348be42bf4aab9529b1',
   'dart_root_certificates_rev': '692f6d6488af68e0121317a9c2c9eb393eb0ee50',

ci/licenses_golden/licenses_third_party

@@ -1,4 +1,4 @@
-Signature: fcaaa2659f4d5ddf584020fe4fb16563
+Signature: c0891eb5d4a456ec00567c54e957faca
 
 UNUSED LICENSES: