revsetbenchmark: add entry for ::rev::
Revsets of the form ::rev:: were identified as the source behind the
regressions in issue 4201. Ensure we have explicit coverage of that
revset.
--- a/contrib/revsetbenchmarks.txt Mon Mar 31 10:12:07 2014 -0500
+++ b/contrib/revsetbenchmarks.txt Fri Mar 28 16:12:05 2014 -0700
@@ -12,3 +12,4 @@
min(0:tip)
0::
min(0::)
+::p1(p1(tip))::