bookmarks: add bookmarks to hidden revs if directaccess config is set This patch adds support to add bookmarks to hidden revs if `experimental.directaccessi=True` config is set. A warning is also printed saying "accessing hidden changeset <revhash>". Differential Revision: https://phab.mercurial-scm.org/D1813

visibility: pass a normal repo to _getfilteredreason There is no reason to pass an unfiltered-repo to _getfilteredreason and successorssets, so use a normal repo instead. Differential Revision: https://phab.mercurial-scm.org/D1853