Modify the segfaulting example to show why r53997 is not a solution to

it.

Lib/test/crashers/modify_dict_attr.py

+
+# http://python.org/sf/1303614
+
+class Y(object):
+    pass
+
+class type_with_modifiable_dict(type, Y):
+    pass
+
+class MyClass(object):
+    """This class has its __dict__ attribute indirectly
+    exposed via the __dict__ getter/setter of Y.
+    """
+    __metaclass__ = type_with_modifiable_dict
+
+
+if __name__ == '__main__':
+    dictattr = Y.__dict__['__dict__']
+    dictattr.__delete__(MyClass)  # if we set tp_dict to NULL,
+    print MyClass         # doing anything with MyClass segfaults