Mostly minor changes. Removed some obsolete commented-out code.
Mostly minor changes.
Removed some obsolete commented-out code.

Merged BaseConversion into Conversion since there's only one
conversion process now.

Remove push/pop of output stream; it's no longer needed.

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