Changes by: Brian Emre Aydemir (baydemir at cis.upenn.edu)
Date: 2001-11-02 21:12:57 -0800 (Fri, 02 Nov 2001)
Revision: 3433
Log message:
      - More const_elim rewrites.
       - Changed the type from ty(Raw)Int -> tyEnum{2} on
         the integer boolean comparison expressions.