https://api.flutter.dev/flutter/dart-ui/hashList.html
https://api.flutter.dev/flutter/dart-ui/hashValues.html

• Drop doc references from engine (so we can remove references from framework) - Drop self-references to hash functions from doc comments engine#53844
• Drop export in painting.dart (framework) - painting: drop deprecated (exported) hashList and hashValues functions #151677
• Delete functions from engine - Drop deprecated hash_code functions engine#54000