BUG: GHC compiler error for 6.6

[Chris Kuklewicz]

When compiling programs (ghc --make) that use regex-parsec I trigger an error in
 GHC 6.6:

> ghc-6.6: panic! (the 'impossible' happened)
>   (GHC version 6.6 for powerpc-apple-darwin):
>         simplCore/Simplify.lhs:(1772,0)-(1788,47): Non-exhaustive patterns in function bind_args

I don't have a simple test case yet, but will try to make one if requested.

-- 
Chris