Move initialization of interned strings to before allocating the object so we don't leak op.  (Fixes an earlier patch to this code)
Move initialization of interned strings to before allocating the
object so we don't leak op.  (Fixes an earlier patch to this code)

Klockwork #350

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