Make it clear that 'progCombMap' is just a cache.
Make it clear that 'progCombMap' is just a cache.

Ignore-this: cadc5efe5c1bc8c39fccff75418e9f33

darcs-hash:20081127132322-26c35-d462eee78b200cee6f8093da2c764c8e790c6eda

jimcrayne/jhc,jimcrayne/jhc,jimcrayne/jhc,jimcrayne/jhc