[Haskell-cafe] How to catch error in array index when debugging

[Colin Paul Adams]

>>>>> "Claus" == Claus Reinke <claus.reinke at talk21.com> writes:

    Claus> None of which is satisfactory. You might also want to add
    Claus> yourself to this ticket:

    Claus>    "index out of range" error message regression
    Claus> http://hackage.haskell.org/trac/ghc/ticket/2669

How do I do that?
-- 
Colin Adams
Preston Lancashire