add ISync to all traits that have [Sync] members

OpenRA.Game/Sync.cs

@@ -17,6 +17,7 @@ using OpenRA.FileFormats;
 namespace OpenRA
 {
 	public class SyncAttribute : Attribute { }
+	public interface ISync { }	/* marker interface */
 
 	public static class Sync
 	{

OpenRA.Game/Traits/Health.cs

@@ -23,7 +23,7 @@ namespace OpenRA.Traits
 
 	public enum DamageState { Undamaged, Light, Medium, Heavy, Critical, Dead };
 	
-	public class Health
+	public class Health : ISync
 	{
 		public readonly HealthInfo Info;
 		

OpenRA.Game/Traits/Player/DeveloperMode.cs

@@ -25,7 +25,7 @@ namespace OpenRA.Traits
 		public object Create (ActorInitializer init) { return new DeveloperMode(this); }
 	}
 	
-	public class DeveloperMode : IResolveOrder
+	public class DeveloperMode : IResolveOrder, ISync
 	{
 		DeveloperModeInfo Info;
 		[Sync] public bool FastCharge;

OpenRA.Game/Traits/Player/PlayerResources.cs

@@ -26,7 +26,7 @@ namespace OpenRA.Traits
 	{
 		public object Create(ActorInitializer init) { return new DebugResourceCash(init.self); }
 	}
-	public class DebugResourceCash
+	public class DebugResourceCash : ISync
 	{
 		readonly Actor self;
 		public DebugResourceCash(Actor self){this.self = self;}
@@ -37,7 +37,7 @@ namespace OpenRA.Traits
 	{
 		public object Create(ActorInitializer init) { return new DebugResourceOre(init.self); }
 	}
-	public class DebugResourceOre
+	public class DebugResourceOre : ISync
 	{
 		readonly Actor self;
 		public DebugResourceOre(Actor self){this.self = self;}
@@ -48,14 +48,14 @@ namespace OpenRA.Traits
 	{
 		public object Create(ActorInitializer init) { return new DebugResourceOreCapacity(init.self); }
 	}
-	public class DebugResourceOreCapacity
+	public class DebugResourceOreCapacity : ISync
 	{
 		readonly Actor self;
 		public DebugResourceOreCapacity(Actor self){this.self = self;}
 		[Sync] public int foo { get { return self.Trait<PlayerResources>().OreCapacity; } }
 	}
 	
-	public class PlayerResources : ITick
+	public class PlayerResources : ITick, ISync
 	{
 		readonly Player Owner;
 		int AdviceInterval;

OpenRA.Game/Traits/SharesCell.cs

@@ -15,7 +15,8 @@ namespace OpenRA.Traits
 	{
 		public object Create(ActorInitializer init) { return new SharesCell(init); }
 	}
-	public class SharesCell : IOffsetCenterLocation
+
+	public class SharesCell : IOffsetCenterLocation, ISync
 	{
 		[Sync]
 		public int Position;