Add list tests that ensure that remove() removes the first occurrence. (Copied from test_deque.py as suggested by Jim Jewett in SF bug #1166274)
Add list tests that ensure that remove() removes the first occurrence.
(Copied from test_deque.py as suggested by Jim Jewett in SF bug #1166274)

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