SPIGOT-2405: Better event for combust due to fire

nms-patches/Entity.patch

@@ -204,7 +204,7 @@
 -                    if (this.fireTicks == 0) {
 +                    // CraftBukkit start - Not on fire yet
 +                    if (this.fireTicks <= 0) { // Only throw events on the first combust, otherwise it spams
-+                        EntityCombustEvent event = new EntityCombustEvent(getBukkitEntity(), 8);
++                        EntityCombustEvent event = new org.bukkit.event.entity.EntityCombustByBlockEvent(null, getBukkitEntity(), 8);
 +                        world.getServer().getPluginManager().callEvent(event);
 +
 +                        if (!event.isCancelled()) {