Use Null-Propagation Operator

OpenRA.Game/Scripting/ScriptContext.cs

@@ -267,8 +267,7 @@ namespace OpenRA.Scripting
 				return;
 
 			disposed = true;
-			if (runtime != null)
-				runtime.Dispose();
+			runtime?.Dispose();
 		}
 
 		static IEnumerable<Type> ExtractRequiredTypes(Type t)

OpenRA.Game/Scripting/ScriptTypes.cs

@@ -168,8 +168,7 @@ namespace OpenRA.Scripting
 			{
 				// Object needs additional notification / context
 				var notify = obj as IScriptNotifyBind;
-				if (notify != null)
-					notify.OnScriptBind(context);
+				notify?.OnScriptBind(context);
 
 				return new LuaCustomClrObject(obj);
 			}