patch applied (ghc-6.10/ghc): FIX #2688

[Ian Lynagh]

Mon Oct 20 21:42:13 PDT 2008  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * FIX #2688
  - Change in TcSimplify.reduceContext:
  
       We do *not* go around for new extra_eqs.  Morally, we should,
       but we can't without risking non-termination (see #2688).  By
       not going around, we miss some legal programs mixing FDs and
       TFs, but we never claimed to support such programs in the
       current implementation anyway.
  
    MERGE TO 6.10

    M ./compiler/typecheck/TcSimplify.lhs -7 +9

View patch online:
http://darcs.haskell.org/ghc-6.10/ghc/_darcs/patches/20081021044213-6295e-1a2ead16820955c12a656a6fea86a3a6cb6cc410.gz