I'm trying to implement a single primop to replace sameMutVar#, sameMutableArray#, etc. The primop should have type
unliftedPtrEquality#
:: forall (a :: TYPE 'UnliftedRep).
a -> a -> Int#
Unfortunately, I don't see a way to express this type in primops.pp.txt. Is
it possible? If not, what's the right way to give the primop the right type?
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