optimize_code():  Repaired gross error in new special-casing for None. The preceding case statement was missing a terminating "break" stmt, so fell into the new code by mistake.  This caused uncaught out-of-bounds accesses to the "names" tuple, leading to a variety of insane behaviors.
optimize_code():  Repaired gross error in new special-casing for None.
The preceding case statement was missing a terminating "break" stmt,
so fell into the new code by mistake.  This caused uncaught out-of-bounds
accesses to the "names" tuple, leading to a variety of insane behaviors.

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