[Haskell-cafe] Parsec type error with Flexible Contexts

[Marco Túlio Gontijo e Silva]

Hi.

I wanted to generalize the definitions in Text.Parsec.Language to be
able to use them with Parsec Text instead of Parsec String.  I'm
getting a type error with the following code snippet:
http://hpaste.org/72844

I don't really understand the error, specially with regard to the fact
that the if I comment one of the marked lines on the code pasted the
program build.

Any help is welcome.

Greetings.

-- 
marcot
http://marcot.eti.br/