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Simon Peyton Jones authored
This patch fixes Trac #11465. The check_unlifted check really isn't necessary, as discussed in Trac #11120 comment:19. Removing it made just one test-suite change, in indexed-types/should_fail/T9357, by allowing type family F (a :: k1) :: k2 type instance F Int# = Int to be accepted. And indeed that seems entirely reasonable.
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