Roll Dart SDK from 6135aed34f56 to 12c5be745bb5 (1 revision) (flutter#22524)

skia-flutter-autoroll · web-flow · commit e91aa1111d33 · 2020-11-14T08:33:01.000-08:00
diff --git a/DEPS b/DEPS
@@ -34,7 +34,7 @@ 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': '6135aed34f561a65b2b8c91b04a2bc086aa2ce02',
+  'dart_revision': '12c5be745bb5d3a0f4fa5edc76b2269641860654',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
