phases: directly update the phase sets in advanceboundary

This is similar to what we do in retractboundary. There is no need to invalidate
the cache if we have everything at hand to update it.

mercurial/phases.py

@@ -769,19 +769,26 b' class phasecache:'
         if not dryrun:
             for r, p in changed.items():
                 _trackphasechange(phasetracking, r, p, targetphase)
+            if targetphase > public:
+                self._phasesets[targetphase].update(changed)
             for phase in affectable_phases:
                 roots = self._phaseroots[phase]
                 removed = roots & delroots
                 if removed or new_roots[phase]:
+                    self._phasesets[phase].difference_update(changed)
                     # Be careful to preserve shallow-copied values: do not
                     # update phaseroots values, replace them.
                     final_roots = roots - delroots | new_roots[phase]
-                    self._updateroots(repo, phase, final_roots, tr)
+                    self._updateroots(
+                        repo, phase, final_roots, tr, invalidate=False
+                    )
             if new_target_roots:
                 # Thanks for previous filtering, we can't replace existing
                 # roots
                 new_target_roots |= self._phaseroots[targetphase]
-                self._updateroots(repo, targetphase, new_target_roots, tr)
+                self._updateroots(
+                    repo, targetphase, new_target_roots, tr, invalidate=False
+                )
             repo.invalidatevolatilesets()
         return changed