[PATCH 3 of 4] summary: don't reimplment mergestate.unresolved()

[Martin von Zweigbergk]

# HG changeset patch
# User Martin von Zweigbergk <martinvonz at google.com>
# Date 1448300232 28800
#      Mon Nov 23 09:37:12 2015 -0800
# Node ID 30ac13304e5d0e8b4e68455f18adc058e219db7f
# Parent  c5cf385ed9f35169e6d59376e7c3f704ac21d208
summary: don't reimplment mergestate.unresolved()

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -4776,7 +4776,7 @@
             _('warning: merge state has unsupported record types: %s\n') % s)
         unresolved = 0
     else:
-        unresolved = [f for f in ms if ms[f] == 'u']
+        unresolved = list(ms.unresolved())
 
     for p in parents:
         # label with log.changeset (instead of log.parent) since this