obsolete: closest divergent support Add a closest argument to successorssets changing the definition of latest successors. With "closest=false" (current behavior), latest successors are "leafs" on the obsmarker graph. They don't have any successor and are known locally. With "closest=true", latest successors are the closest locally-known changesets that are visible in the repository or repoview. Closest successors can be then obsolete, orphan. This will be used in a later patch to show the closest successor of changesets with the successorssets template.

--- a/tests/test-completion.t	Fri Jun 30 15:02:19 2017 +0200
+++ b/tests/test-completion.t	Fri Jun 30 15:27:19 2017 +0200
@@ -284,7 +284,7 @@
   debugrevspec: optimize, show-revs, show-set, show-stage, no-optimized, verify-optimized
   debugsetparents: 
   debugsub: rev
-  debugsuccessorssets: 
+  debugsuccessorssets: closest
   debugtemplate: rev, define
   debugupdatecaches: 
   debugupgraderepo: optimize, run