Added TODOs for the McCarthy 91 function.
Added TODOs for the McCarthy 91 function.

Ignore-this: 2506d3deec4c54b91de9a89a28b9c371

darcs-hash:20110215201635-3bd4e-13345b05d463da2805a6d840b998ed7a2dacfe40.gz

asr/fotc,asr/fotc