Update upstream

patches/server/0015-Add-Player-getHiddenEntities-API.patch

@@ -0,0 +1,28 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Lexi <lexi@qixils.dev>
+Date: Thu, 23 Jun 2022 22:03:18 -0400
+Subject: [PATCH] Add Player#getHiddenEntities API
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index eca5e6b93dd84307bf9dbadf32414d6f506e69dc..7e6b452df1915b1a6ebcc3bfd8f8ace5258fada4 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -1898,6 +1898,17 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+         server.getPluginManager().callEvent(new PlayerShowEntityEvent(this, entity)); // Paper
+     }
+     // Paper start
++
++    // Parchment start
++    @Override
++    public Set<UUID> getHiddenEntities(Plugin plugin) {
++        return invertedVisibilityEntities.entrySet().stream()
++            .filter(entry -> entry.getValue().contains(CraftPlayer.getPluginWeakReference(plugin)))
++            .map(Map.Entry::getKey)
++            .collect(java.util.stream.Collectors.toSet());
++    }
++   // Parchment end
++
+     @Override
+     public void setPlayerProfile(com.destroystokyo.paper.profile.PlayerProfile profile) {
+         ServerPlayer self = this.getHandle();