the schedule certificate's state after a prefix of events: the next
event's index (from 1), the last generation awaited, the pending writes,
the first hazard (0: none yet)
61family ArenaScheduleState : Type 0
62constructor ArenaScheduleStateValue
63field unrestricted arenaStateIndex : Nat
64field unrestricted arenaStateLast : Nat
65field unrestricted arenaStatePending : (family ArenaRanges)
66field unrestricted arenaStateHazard : NatThe compiler supplied declaration spans and resolved links from this source snapshot. This page does not assert that this file belongs to a checked closure.