Fix the expected memory use of utf-8 encoding.  Also, release the one reference to a huge object even when an exception is raised.
Fix the expected memory use of utf-8 encoding.  Also, release the
one reference to a huge object even when an exception is raised.

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