[Haskell-cafe] State of records in Haskell

[Øystein Kolsrud]

Hi! I recently had a look at a talk by Simon Peyton Jones on lenses
(https://skillsmatter.com/skillscasts/4251-lenses-compositional-data-access-and-manipulation)
and happened to notice that, at the very end, he mentions that there
were changes going into GHC 7.10 that would make it possible to use
the same field name for multiple record types. I was searching around
a little for more information on this, but had a hard time finding
what I was looking for and was hoping that someone here could give me
a pointer.

What does GHC support in this domain at the moment, and are there any
particular flags I need to use in order to use that functionality?

Best regards, Øystein Kolsrud