The Dart files and golden master .expect files in this directory are used to test the dart fix framework refactorings used by the Flutter framework.
See the flutter/packages/flutter/lib/fix_data.yaml file for the current package:flutter data driven fixes.
Note that the tests in this directory are also invoked from external repositories. Specifically, the CI system for the dart-lang/sdk repo runs these tests in order to ensure that changes to the dart fix file format do not break Flutter.
See tools/bots/flutter/analyze_flutter_flutter.sh for where the tests are invoked.
When possible, please coordinate changes to this directory that might affect the analyze_flutter_flutter.sh script.