Use WorldServer#entitesById for entity iteration

WorldServer#globalEntityList is not the actual list of entities in a world

Spigot-Server-Patches/Provide-E-TE-Chunk-count-stat-methods.patch

@@ -6,21 +6,8 @@ Subject: [PATCH] Provide E/TE/Chunk count stat methods
 Provides counts without the ineffeciency of using .getEntities().size()
 which creates copy of the collections.
 
-diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
-index f32c4913c5..606ec3c482 100644
---- a/src/main/java/net/minecraft/server/WorldServer.java
-+++ b/src/main/java/net/minecraft/server/WorldServer.java
-@@ -0,0 +0,0 @@ import org.bukkit.event.weather.LightningStrikeEvent;
- public class WorldServer extends World {
- 
-     private static final Logger LOGGER = LogManager.getLogger();
--    private final List<Entity> globalEntityList = Lists.newArrayList();
-+    public final List<Entity> globalEntityList = Lists.newArrayList(); // Paper - private -> public
-     public final Int2ObjectMap<Entity> entitiesById = new Int2ObjectLinkedOpenHashMap();
-     private final Map<UUID, Entity> entitiesByUUID = Maps.newHashMap();
-     private final Queue<Entity> entitiesToAdd = Queues.newArrayDeque();
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-index b8de760079..c79b0f42a6 100644
+index b8de760079..b3a77ec3c5 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
 @@ -0,0 +0,0 @@ public class CraftWorld implements World {
@@ -30,7 +17,7 @@ index b8de760079..c79b0f42a6 100644
 +    // Paper start - Provide fast information methods
 +    // TODO review these changes
 +    public int getEntityCount() {
-+        return world.globalEntityList.size();
++        return world.entitiesById.size();
 +    }
 +    public int getTileEntityCount() {
 +        // We don't use the full world tile entity list, so we must iterate chunks