CachedBagOStuff caches negatives, so it breaks PoolCounter.
We only need to cache metadata in-process, since it's commonly
used twice within the request.
Bug: T277829
Change-Id: I11a147c24b6cdb275b521b48802d6f3d0e1a4387
Still needs to downcast to WikiPage in 2 places:
1. To check get a ContentHandler and check if content model
is cacheable. We probably should just make all content models
cacheable.
2. To call WikiPage::triggerOpportunisticLinksUpdate. I have
an elaborate plan for this one, but it will be done separately.
Change-Id: Ifd9ab0155dc1fad0c1608dafea05d16292afd057
ParserOptions not updated cause they depend on Title::getLanguage
implementation.
Tests converted to not require a DB anymore. Can't be proper unit
tests yet due to globals in ParserOptions and fake time hacks,
but exec time does go down from 70 seconds to 9 seconds.
Page content model is still emitted in the metrics since
it was considered useful. Should be removed when we get
something like a page type concept.
Change-Id: Ib16fd0b5b87ffc3cb4d21f4aa43d1203cb7206d2
Extracts a specialized subclass for rendering the current revision
from PoolWorlArticleView, which then no longer knowes about caching.
In the next step, we will add a subclass that implements caching for old
revisions.
Bug: T267832
Change-Id: I56fb365962951e6c723a01cf9243dbc0094b5581
