3.3.5/LTS: missing backport for "bad constant pool tag 17" when using a library compiled using Java 21

[dmivankov]

Compiler version

3.3.5

Expectation

Following fix should be backported to 3.3.x LTS
#19533
#19527
scala/bug#12936

[WojciechMazur]

@tgodzik Seems like a candidate for 3.3.6-RC3. The PR was included in the LTS backports project under old organization but for some reason it was not merged at the time. Probably there were some conflicts at the time, or I must have missed it (it was placed in Backport Requested column)

[WojciechMazur]

Fixed by backporting 3.3.6-RC3