Few more tests and call sites

./python.exe -Wall -m test test_asyncio
Run tests sequentially
0:00:00 load avg: 2.41 [1/1] test_asyncio
/Users/karthikeyansingaravelan/stuff/python/cpython/Lib/asyncio/locks.py:335: DeprecationWarning: The loop argument is deprecated since Python 3.8, and scheduled for removal in Python 3.10.
  lock = Lock(loop=self._loop)
test_asyncio passed in 1 min 38 sec

== Tests result: SUCCESS ==

1 test OK.

Total duration: 1 min 38 sec
Tests result: SUCCESS

call sites 

>>> list(asyncio.tasks.as_completed([asyncio.ensure_future(asyncio.sleep(1))]))
/Users/karthikeyansingaravelan/stuff/python/cpython/Lib/asyncio/tasks.py:579: DeprecationWarning: The loop argument is deprecated since Python 3.8, and scheduled for removal in Python 3.10.
  done = Queue(loop=loop)
/Users/karthikeyansingaravelan/stuff/python/cpython/Lib/asyncio/queues.py:48: DeprecationWarning: The loop argument is deprecated since Python 3.8, and scheduled for removal in Python 3.10.
  self._finished = locks.Event(loop=self._loop)