Refactoring Targets

Prioritize improvements to these files since they have the highest technical debt interest rate.


rails/activerecord/lib/active_record/base.rb
rails/activerecord/lib/active_record/associations.rb
rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
rails/activerecord/test/cases/base_test.rb
rails/actionview/test/template/form_helper_test.rb
rails/actionpack/test/dispatch/routing_test.rb