Handle NULL nodes while parsing.  I'm not entirely sure this is correct. There might be something else that needs to be done to setup the error.
Handle NULL nodes while parsing.  I'm not entirely sure this is correct.
There might be something else that needs to be done to setup the error.

Klocwork #295.

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