avoid_unstable_final_fields

Avoid overriding a final field to return different values if called multiple times.

This rule has been removed.

To enable the avoid_unstable_final_fields rule, add avoid_unstable_final_fields under linter > rules in your analysis_options.yaml file:

linter:
  rules:
    - avoid_unstable_final_fields

If you're instead using the YAML map syntax to configure linter rules, add avoid_unstable_final_fields: true under linter > rules:

linter:
  rules:
    avoid_unstable_final_fields: true