Roll Dart SDK from dac7c04c7342 to f838a9a8d45f (3 revisions)

DEPS

@@ -56,7 +56,7 @@ 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': 'dac7c04c7342fc48c0aa8f174159e7f75d5740d2',
+  'dart_revision': 'f838a9a8d45fa1c387685978da48cecdafc6f7b3',
 
   # 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_dart

@@ -1,4 +1,4 @@
-Signature: bc633a97e3bc2440579d1053ce01b379
+Signature: afa4ae5eab2c6a0664b8f2fee648e5ac
 
 ====================================================================================================
 LIBRARY: dart
@@ -4747,7 +4747,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/dac7c04c7342fc48c0aa8f174159e7f75d5740d2
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/f838a9a8d45fa1c387685978da48cecdafc6f7b3
 /third_party/fallback_root_certificates/
 
 ====================================================================================================