Roll Dart SDK from f6f88ed5e5a1 to 50eca21d80c4 (1 revision) (flutter#178599)

https://dart.googlesource.com/sdk.git/+log/f6f88ed5e5a1..50eca21d80c4

2025-11-15 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.11.0-140.0.dev

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Author: engine-flutter-autoroll

DEPS

@@ -57,7 +57,7 @@ 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': 'f6f88ed5e5a17102b55166727bb8f70a60bcf164',
+  'dart_revision': '50eca21d80c4b7b275ef52203689b271db106390',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -312,7 +312,7 @@ deps = {
    Var('dart_git') + '/core.git' + '@' + Var('dart_core_rev'),
 
   'engine/src/flutter/third_party/dart/third_party/pkg/dart_style':
-   Var('dart_git') + '/dart_style.git@de7e7260b81a4d4e2475c37faf0e89b83454dfdb',
+   Var('dart_git') + '/dart_style.git@e8190bf2242654daee7ebf21fd6d8c8046989822',
 
   'engine/src/flutter/third_party/dart/third_party/pkg/dartdoc':
    Var('dart_git') + '/dartdoc.git@6d1aa6f5045c33d3723aba05e3e0dc1403b763c0',