--- a/mercurial/filelog.py	Mon Sep 24 08:58:57 2018 -0700
+++ b/mercurial/filelog.py	Wed Sep 19 11:17:28 2018 -0700
@@ -189,6 +189,9 @@
 
         return True
 
+    def verifyintegrity(self, state):
+        return self._revlog.verifyintegrity(state)
+
     # TODO these aren't part of the interface and aren't internal methods.
     # Callers should be fixed to not use them.