Three test cases for __reduce_ex__.  This fails for cPickle, until Tim checks in his changes to support this in cPickle.c.
Three test cases for __reduce_ex__.  This fails for cPickle, until Tim
checks in his changes to support this in cPickle.c.

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