[cvs-nhc98] patch applied (yhc): Change the simplifier, when doing pushing let's down inside a case it was making the binding unique, but not modifying them in the expression. Now it just goes excessive and obviously correct

[Neil Mitchell]

Thu Jul  5 08:12:20 PDT 2007  Neil Mitchell
  * Change the simplifier, when doing pushing let's down inside a case it was making the binding unique, but not modifying them in the expression. Now it just goes excessive and obviously correct

    M ./src/libraries/core/Yhc/Core/Simplify.hs -3 +3