D7256: repoview: define filteredchangelog as a top-level (non-local) class

[yuja (Yuya Nishihara)]

yuja added a comment.


  >   > And we might need a class cache like _filteredrepotypes to work around
  >   > leaks of dynamically-created types.
  >   It seems like there's some caching in `_clcache` already. Maybe that's enough?
  
  Maybe not because clcache won't live longer than the repo instance, but
  I have no idea if that actually impact the leak seen in hgweb.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D7256/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D7256

To: martinvonz, #hg-reviewers, indygreg
Cc: yuja, mercurial-devel