Since adding a new feature for a new Edition involves having a value set for Proto2/Proto3 which does not change the semantics of those files, the current test becomes a change detector test against new features being added.
PiperOrigin-RevId: 714851850
All of this information is still available by merging fixed_features and overridable_features. This new split will make validation easier for runtimes that need to do dynamic builds.
PiperOrigin-RevId: 625815212