obsolete: rename `anysuccessors` into `allsuccessors`

The "any" prefix looks like it returned a boolean. `allsuccessors` is more
accurate.

mercurial/bookmarks.py

@@ -266,7 +266,7 b' def validdest(repo, old, new):'
             for c in validdests:
                 if c.phase() > phases.public:
                     # obsolescence marker does not apply to public changeset
-                    succs.update(obsolete.anysuccessors(repo.obsstore,
+                    succs.update(obsolete.allsuccessors(repo.obsstore,
                                                         c.node()))
             validdests = set(repo.set('%ln::', succs))
         validdests.remove(old)

mercurial/discovery.py

@@ -298,7 +298,7 b' def checkheads(repo, remote, outgoing, r'
                 if nh in repo and repo[nh].phase() <= phases.public:
                     newhs.add(nh)
                 else:
-                    for suc in obsolete.anysuccessors(repo.obsstore, nh):
+                    for suc in obsolete.allsuccessors(repo.obsstore, nh):
                         if suc != nh and suc in allfuturecommon:
                             discardedheads.add(nh)
                             break

mercurial/obsolete.py

@@ -351,7 +351,7 b' def successormarkers(ctx):'
     for data in ctx._repo.obsstore.successors.get(ctx.node(), ()):
         yield marker(ctx._repo, data)
 
-def anysuccessors(obsstore, node):
+def allsuccessors(obsstore, node):
     """Yield every successor of <node>
 
     This is a linear yield unsuited to detecting split changesets."""