diff -r dea2a17cbfd0 -r be8a866a2c44 contrib/check-code.py
--- a/contrib/check-code.py	Wed Mar 29 12:37:03 2017 -0700
+++ b/contrib/check-code.py	Wed Mar 29 16:46:57 2017 -0700
@@ -337,6 +337,8 @@
     (r'^import httplib', "don't use httplib, use util.httplib"),
     (r'^import BaseHTTPServer', "use util.httpserver instead"),
     (r'\.next\(\)', "don't use .next(), use next(...)"),
+    (r'([a-z]*).revision\(\1\.node\(',
+     "don't covert rev to node before passing to revision(nodeorrev)"),
 
     # rules depending on implementation of repquote()
     (r' x+[xpqo%APM][\'"]\n\s+[\'"]x',