asim: pass state changer directly to pushReplicateChange

Previously, we passed base queue to pushReplicateChange, but only its state
changer was being used. This commit updates pushReplicateChange to only take in
the state changer.

Epic: none
Release note: none

Author: wenyihu6

pkg/kv/kvserver/asim/queue/lease_queue.go

@@ -159,7 +159,7 @@ func (lq *leaseQueue) Tick(ctx context.Context, tick time.Time, s state.State) {
 		}
 
 		lq.next = pushReplicateChange(
-			ctx, change, repl, tick, lq.settings.ReplicaChangeDelayFn(), lq.baseQueue)
+			ctx, change, repl, tick, lq.settings.ReplicaChangeDelayFn(), lq.baseQueue.stateChanger)
 	}
 
 	lq.lastTick = tick

pkg/kv/kvserver/asim/queue/replicate_queue.go

@@ -153,7 +153,7 @@ func (rq *replicateQueue) Tick(ctx context.Context, tick time.Time, s state.Stat
 		}
 
 		rq.next = pushReplicateChange(
-			ctx, change, repl, tick, rq.settings.ReplicaChangeDelayFn(), rq.baseQueue)
+			ctx, change, repl, tick, rq.settings.ReplicaChangeDelayFn(), rq.baseQueue.stateChanger)
 	}
 
 	rq.lastTick = tick
@@ -165,7 +165,7 @@ func pushReplicateChange(
 	repl *SimulatorReplica,
 	tick time.Time,
 	delayFn func(int64, bool) time.Duration,
-	queue baseQueue,
+	stateChanger state.Changer,
 ) time.Time {
 	var stateChange state.Change
 	next := tick
@@ -194,7 +194,7 @@ func pushReplicateChange(
 		panic(fmt.Sprintf("Unknown operation %+v, unable to create state change", op))
 	}
 
-	if completeAt, ok := queue.stateChanger.Push(tick, stateChange); ok {
+	if completeAt, ok := stateChanger.Push(tick, stateChange); ok {
 		log.VEventf(ctx, 1, "pushing state change succeeded, complete at %s (cur %s)", completeAt, tick)
 		next = completeAt
 	} else {