Added some tests to make sure that long->int conversions near sys.maxint and near -sys.maxint-1 work correctly.
Added some tests to make sure that long->int conversions near
sys.maxint and near -sys.maxint-1 work correctly.

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