* In LinkBatch::addObj(), reject interwiki links with a warning.
Otherwise the link is added to the batch by ns/title and later
reconstructed as if it were a local link without an interwiki
prefix.
* In CommentParser, treat interwiki links as always good, don't defer
the existence check.
* In LinkBatch, inject a LoggerInstance instead of calling LoggerFactory
in four places.
* Add a regression test, and some general tests for known links.
Bug: T300311
Change-Id: I0e5825eb48a6ba2932aea69a4d0fff3439c50ff5
16979ecf29