[Haskell-cafe] Module names from a function name

[Jong-won Choi]

Hi,

I asked this question to beginner mailing list and no luck so far, so 
I'm trying here.

How can I get all the module names which (re-)export a given function name?

I'd like to fix Emacs Haskell mode - interactive documentation browser 
and I need the list of such module names.

Thanks!

- Jong-won