API docs omit protected classes such as MapOps#KeySet

[som-snytt]

Compiler version

Scaladoc version 3.4.0-RC1-bin-SNAPSHOT-git-5454110

Minimized code

I went looking for KeySet.

https://www.scala-lang.org/api/3.3.1/scala/collection/MapOps.html#

Scala 2 doc makes it searchable but also omits it at

https://www.scala-lang.org/api/current/scala/collection/MapOps.html#KeySetextendsAbstractSet[K]withMapOps.this.GenKeySetwithDefaultSerializable

Expectation

Protected classes for implementors are documented.

--help says

                -private  Show all types and members. Unless specified, show only public and protected types and
                          members.

Noticed while probing for undocumented methods.

Relates to scala/bug#11727

[WojciechMazur]

@szymon-rd @Florian3k Are you maybe aware why this might happen? Is it maybe just an oversight or an expected behaviour, because e.g. we would not want the users to depend on stdlib internals?

[Florian3k]

It looks like an oversight