[Haskell-cafe] Issue with IsFunction/Vspace in GHC 6.10.1

[Jacques Carette]

Claus Reinke wrote:
> {-# LANGUAGE ScopedTypeVariables #-}
>
> without, the 'f's in the instance are independent.
> Claus
Thanks - I discovered this (by trial-and-error) at about the same time
you sent the email. 

Is there a ticket somewhere to add a warning about this?  I expected me
'f's to be the same, and the error messages were not the least bit
enlightening.

Jacques