* Rename `_EvaluationResult` to `_ImageEvaluationResult`
* Add new `_EvaluationResult`
* Fix type of `COCOeval.eval`
* Correct Params.areaRng which is in fact a list of pairs
If you're reading about this commit from an autogenerated changelog entry, this should have no user-visible impact on how the stubs are interpreted by a type checker; it's just an internal change to how typeshed's tests work.