Adjust test_enumerate to accomodate for iter() blowing up sooner than expected, when dealing with new-style broken-iterators.
Adjust test_enumerate to accomodate for iter() blowing up sooner than
expected, when dealing with new-style broken-iterators.

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