Decode this bug

[Daniel Wang]

Ahh.. looks like, I'm making some progress.  After looking a bit more at
id.fun. I'd discovered I wasn't doing the right thing when converting
between my identifiers and Mltons. After insertion of a few hashtables, I'm
back in business, but with a different bug...


Main: main19
checkScopes ==> 
==> 
inferHandlers ==> 
==> 
Bug: fold2

uncaught exception Bug


Does MLton expect each variable to be defined exactly once? (i.e. to I need
to alpha convert my program before hand..)