Add outstanding_crashes.py with tests for crashes.

Lib/test/outstanding_bugs.py

@@ -22,3 +22,6 @@ class TestBug1385040(unittest.TestCase):
 
 def test_main():
     test_support.run_unittest(TestBug1385040)
+
+if __name__ == "__main__":
+    test_main()

Lib/test/outstanding_crashes.py

+#
+# This file is for everybody to add tests for crashes that aren't
+# fixed yet. Please add a test case and appropriate description.
+#
+# When you fix one of the crashes, please move the test to the correct
+# test_ module.
+#
+
+import unittest
+from test import test_support
+
+
+# Bug 1377858
+#
+# mwh's description:
+# The problem is obvious if you read typeobject.c around line 660: the weakref
+# list is cleared before __del__ is called, so any weakrefs added during the 
+# execution of __del__ are never informed of the object's death.
+
+import weakref
+ref = None
+
+class TestBug1377858(unittest.TestCase):
+    class Target(object):
+        def __del__(self):
+            global ref
+            ref = weakref.ref(self)
+    
+    def testBug1377858(self):
+        w = self.__class__.Target()
+        w = None
+        print ref()
+
+def test_main():
+    test_support.run_unittest(TestBug1377858)
+
+if __name__ == "__main__":
+    test_main()