Getting rid of -XImpredicativeTypes

[Richard Eisenberg]

> On Sep 30, 2016, at 6:36 PM, Baldur Blöndal <baldurpet at gmail.com> wrote:
> 
> Shot in the dark: Would extensions like QuantifiedConstraints or ImplicationConstraints, if implemented, help with ImpredicativeTypes?

I don't think so. The challenge with ImpredicativeTypes is retaining predictability of type inference, and I don't see how implication constraints helps with this.

Richard