revert: use `set_possibly_dirty` instead of `normallookup`

This is the newer, more semantic API.

Differential Revision: https://phab.mercurial-scm.org/D11174

mercurial/cmdutil.py

@@ -3610,7 +3610,7 b' def _performrevert('
         # to report the file as clean. We have to use normallookup for
         # merges to avoid losing information about merged/dirty files.
         if p2 != repo.nullid:
-            normal = repo.dirstate.normallookup
+            normal = repo.dirstate.set_tracked
         else:
             normal = repo.dirstate.set_clean
 
@@ -3703,7 +3703,7 b' def _performrevert('
             checkout(f)
             repo.dirstate.set_tracked(f)
 
-    normal = repo.dirstate.normallookup
+    normal = repo.dirstate.set_tracked
     if node == parent and p2 == repo.nullid:
         normal = repo.dirstate.set_clean
     for f in actions[b'undelete'][0]: