bpo-35357: Add _mock_ prefix to name/parent/from_kall attributes of _Call/_MagicProxy. (GH-10873) (#10887)

Fix minor typo in test function name.
(cherry picked from commit e63e617ebbe481c498bdf037a62e09f4f9f3963f)

Co-authored-by: Andrew Dunai <andunai@gmail.com>
4 files changed