Update to Minecraft 1.13-pre7

By: md_5 <git@md-5.net>

paper-server/nms-patches/CustomFunction.patch

@@ -1,19 +1,11 @@
 --- a/net/minecraft/server/CustomFunction.java
 +++ b/net/minecraft/server/CustomFunction.java
-@@ -122,7 +122,15 @@
-         }
+@@ -45,7 +45,7 @@
+                 }
  
-         public void a(CustomFunctionData customfunctiondata, ICommandListener icommandlistener, ArrayDeque<CustomFunctionData.a> arraydeque, int i) {
--            customfunctiondata.a().a(icommandlistener, this.a);
-+            // CraftBukkit start
-+            org.bukkit.command.CommandSender sender;
-+            if (icommandlistener instanceof CustomFunctionData.CustomFunctionListener) {
-+                sender = ((CustomFunctionData.CustomFunctionListener) icommandlistener).sender;
-+            } else {
-+                sender = CommandBlockListenerAbstract.unwrapSender(icommandlistener);
-+            }
-+            CommandBlockListenerAbstract.executeSafely(icommandlistener, sender, this.a);
-+            // CraftBukkit end
-         }
+                 try {
+-                    ParseResults parseresults = customfunctiondata.a().getCommandDispatcher().a().parse(s, customfunctiondata.f());
++                    ParseResults parseresults = customfunctiondata.d().parse(s, customfunctiondata.f()); // CraftBukkit
  
-         public String toString() {
+                     if (parseresults.getReader().canRead()) {
+                         if (parseresults.getExceptions().size() == 1) {