Add 'flags' to FeatureSet.latestLanguageVersion()

Change-Id: Iebeaf74ff44c2079b319308638fa731a013fdb90
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/406221
Reviewed-by: Paul Berry <paulberry@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>

https://dart.googlesource.com/sdk/+/94707b6b85da22eb43a1b58e02e1e3579a5ae9bf

DEPS

diff --git a/DEPS b/DEPS
index c93be60..451ae95 100644
--- a/DEPS
+++ b/DEPS
@@ -237,7 +237,7 @@
 ]
 
 deps = {
-  'flutter/engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + 'a6668da7845178464f17ef47b46f4434915bb10a',
+  'flutter/engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + '94707b6b85da22eb43a1b58e02e1e3579a5ae9bf',
 
   'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + 'b007899d3a7a072e880e3984856c777cc9c5082b',
 

commits.json

diff --git a/commits.json b/commits.json
index 52faece..0e40c4e 100644
--- a/commits.json
+++ b/commits.json
@@ -1,4 +1,4 @@
 {
   "flutter":"b007899d3a7a072e880e3984856c777cc9c5082b",
-  "flutter/engine/src/flutter/third_party/dart":"a6668da7845178464f17ef47b46f4434915bb10a"
+  "flutter/engine/src/flutter/third_party/dart":"94707b6b85da22eb43a1b58e02e1e3579a5ae9bf"
 }
\ No newline at end of file