add back optimizing ServerLevel chunk checking methods

patches/server/0463-Expose-Arrow-getItemStack.patch

@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nesaak <52047222+Nesaak@users.noreply.github.com>
+Date: Sat, 23 May 2020 10:31:11 -0400
+Subject: [PATCH] Expose Arrow getItemStack
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftArrow.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftArrow.java
+index 376885c8148da619a3b203145d315ebaf44994fb..88defdc48c72580bbf029910f159dedccf67dc1e 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftArrow.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftArrow.java
+@@ -102,6 +102,13 @@ public class CraftArrow extends AbstractProjectile implements AbstractArrow {
+         this.getHandle().pickup = net.minecraft.world.entity.projectile.AbstractArrow.Pickup.byOrdinal(status.ordinal());
+     }
+ 
++    // Paper start
++    @Override
++    public org.bukkit.craftbukkit.inventory.CraftItemStack getItemStack() {
++        return org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(getHandle().getPickupItem());
++    }
++    //Paper end
++
+     @Override
+     public void setTicksLived(int value) {
+         super.setTicksLived(value);