Roll Dart SDK from 3b11f88c96a5 to f38618d5d0c0 (7 revisions) (flutter#29537)

https://dart.googlesource.com/sdk.git/+log/3b11f88c96a5..f38618d5d0c0

2021-11-02 [email protected] Version 2.15.0-275.0.dev
2021-11-02 [email protected] Version 2.15.0-274.0.dev
2021-11-01 [email protected] Version 2.15.0-273.0.dev
2021-11-01 [email protected] Version 2.15.0-272.0.dev
2021-11-01 [email protected] Version 2.15.0-271.0.dev
2021-10-31 [email protected] Version 2.15.0-270.0.dev
2021-10-30 [email protected] Version 2.15.0-269.0.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],[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': '3b11f88c96a5ca59be307851087f3b5cc3acb004',
+  'dart_revision': 'f38618d5d0c0a1098bc518bb74ea9df248b09963',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -48,7 +48,7 @@ vars = {
   'dart_browser_launcher_rev': 'c6cc1025d6901926cf022e144ba109677e3548f1',
   'dart_clock_rev': 'a494269254ba978e7ef8f192c5f7fec3fc05b9d3',
   'dart_collection_rev': 'a4c941ab94044d118b2086a3f261c30377604127',
-  'dart_devtools_rev': '8881a7caa9067471008a8e00750b161f53cdb843',
+  'dart_devtools_rev': '3a2f570813200e6dee141f3e7a9edcae5f31c2e8',
   'dart_intl_tag': '0.17.0-nullsafety',
   'dart_linter_tag': '1.14.0',
   'dart_protobuf_rev': 'c1eb6cb51af39ccbaa1a8e19349546586a5c8e31',
@@ -170,7 +170,7 @@ deps = {
   # WARNING: Unused Dart dependencies in the list below till "WARNING:" marker are removed automatically - see create_updated_flutter_deps.py.
 
   'src/third_party/dart/third_party/devtools':
-   {'packages': [{'version': 'git_revision:8881a7caa9067471008a8e00750b161f53cdb843', 'package': 'dart/third_party/flutter/devtools'}], 'dep_type': 'cipd'},
+   {'packages': [{'version': 'git_revision:3a2f570813200e6dee141f3e7a9edcae5f31c2e8', 'package': 'dart/third_party/flutter/devtools'}], 'dep_type': 'cipd'},
 
   'src/third_party/dart/third_party/pkg/args':
    Var('dart_git') + '/args.git@3b3f55766af13d895d2020ec001a28e8dc147f91',

ci/licenses_golden/licenses_third_party

@@ -1,4 +1,4 @@
-Signature: b6958f8290a8f058dd0202ed649ba902
+Signature: e3d028e6a9acd048c14adc29bb110683
 
 UNUSED LICENSES: