hidden: move hiddenrevs set on the repository This set is always accessed through the repo for now. Having this set carried by the changelog make it complicated to: - initialize it, computing hidden set may involve revset call - lazy compute it, (1) only the changelog can detect someone access it, (2) only the repo have enought knowledge to compute it. In later version I expect he changelog to apply filtering itself and the set to be carried by changelog again.

--- a/mercurial/context.py	Fri Jul 13 14:38:49 2012 +0200
+++ b/mercurial/context.py	Mon Jul 16 17:44:46 2012 +0200
@@ -203,7 +203,7 @@
     def mutable(self):
         return self.phase() > phases.public
     def hidden(self):
-        return self._rev in self._repo.changelog.hiddenrevs
+        return self._rev in self._repo.hiddenrevs
 
     def parents(self):
         """return contexts for each parent changeset"""