Roll Dart SDK from bc78a79e5e80 to c346bb2d834b (2 revisions) (#25235)

https://dart.googlesource.com/sdk.git/+log/bc78a79e5e80..c346bb2d834b

2021-03-25 dart-luci-ci-builder@dart-ci.iam.gserviceaccount.com Version 2.13.0-166.0.dev
2021-03-25 dart-luci-ci-builder@dart-ci.iam.gserviceaccount.com Version 2.13.0-165.0.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

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': 'bc78a79e5e80be544de6ffc7140c78959846194e',
+  'dart_revision': 'c346bb2d834b2d91c8c1390d8189dfe8793e93c6',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -152,7 +152,7 @@ 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/pkg/args':
-   Var('dart_git') + '/args.git@eb2deca5b4489709acd001a5c7fd2df4f1eed19d',
+   Var('dart_git') + '/args.git@d8fea36c10ef96797be02e3d132d572445cd86f4',
 
   'src/third_party/dart/third_party/pkg/async':
    Var('dart_git') + '/async.git@376d418b1b535030fbe3369938d2ffdbb0340a77',
@@ -254,7 +254,7 @@ deps = {
    Var('dart_git') + '/path.git@407ab76187fade41c31e39c745b39661b710106c',
 
   'src/third_party/dart/third_party/pkg/pedantic':
-   Var('dart_git') + '/pedantic.git@df177f6ae531426aaf7bbf0121c90dc89d9c57bf',
+   Var('dart_git') + '/pedantic.git@66f2f6c27581c7936482e83be80b27be2719901c',
 
   'src/third_party/dart/third_party/pkg/pool':
    Var('dart_git') + '/pool.git@7abe634002a1ba8a0928eded086062f1307ccfae',

ci/licenses_golden/licenses_third_party

-Signature: dba64c90f81fbcd27dcac23171afcf21
+Signature: 2545f9225c0dc47f8fbe4e855afa50bd
 
 UNUSED LICENSES: