News about recently fixed crashers: - A few crashers fixed: weakref_in_del.py (issue #1377858);   loosing_dict_ref.py (issue #1303614, test67.py);   borrowed_ref_[34].py (not in tracker).
News about recently fixed crashers:
- A few crashers fixed: weakref_in_del.py (issue #1377858);
  loosing_dict_ref.py (issue #1303614, test67.py);
  borrowed_ref_[34].py (not in tracker).

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator