Fi debug turd -- a call accidentally left out.
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 3f5ef8d..08dfcdf 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -4505,7 +4505,7 @@
         __builtin__.__import__ = orig_import
 
 def test_main():
-    #XXXweakref_segfault() # Must be first, somehow
+    weakref_segfault() # Must be first, somehow
     wrapper_segfault()
     do_this_first()
     class_docstrings()