Add test for function comparisons
diff --git a/Lib/test/output/test_opcodes b/Lib/test/output/test_opcodes
index 8b78885..4685571 100644
--- a/Lib/test/output/test_opcodes
+++ b/Lib/test/output/test_opcodes
@@ -3,3 +3,4 @@
 XXX Not yet fully implemented
 2.1 try inside for loop
 2.2 raise class exceptions
+2.3 comparing function objects