Fix hopper suck in patch bug

was checking for ItemStack's instead of EntityItem

Spigot-Server-Patches/0062-Avoid-hopper-searches-if-there-are-no-items.patch

@@ -1,4 +1,4 @@
-From 34c7679b3d20769bbaeba17d3ee50ad87bde447a Mon Sep 17 00:00:00 2001
+From ffe9aada565efa029e3c8ebaed7c5e94b286dbe9 Mon Sep 17 00:00:00 2001
 From: CullanP <cullanpage@gmail.com>
 Date: Thu, 3 Mar 2016 02:13:38 -0600
 Subject: [PATCH] Avoid hopper searches if there are no items
@@ -14,7 +14,7 @@ And since minecart hoppers are used _very_ rarely near we can avoid alot of sear
 Combined, this adds up a lot.
 
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 42fedb7..806e499 100644
+index 42fedb7..13d43d5 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -46,6 +46,13 @@ public class Chunk {
@@ -81,7 +81,7 @@ index 42fedb7..806e499 100644
  
 +        // Paper start
 +        int[] counts;
-+        if (ItemStack.class.isAssignableFrom(oclass)) {
++        if (EntityItem.class.isAssignableFrom(oclass)) {
 +            counts = itemCounts;
 +        } else if (IInventory.class.isAssignableFrom(oclass)) {
 +            counts = inventoryEntityCounts;
@@ -95,5 +95,5 @@ index 42fedb7..806e499 100644
  
              while (iterator.hasNext()) {
 -- 
-2.8.0
+2.8.2