Uniquable RdrName instance

[Jan Stolarek]

> FYI it's #7828, not #7282.
Of course, yes.

> would making arrow remindable involve dropping the arr == haksell functions assumption or doing
> something that would allow generalized arrows? 
Not sure if I fully understand what you mean. There's an idea to give up on current desugaring 
that heavily uses arr, >>> etc. in favor of desugaring based on bind equivalents for arrows. Is 
this what you wanted to know? There's some discussion on the Trac you might want to follow.

Janek