Change: Give AI/GSBridge::GetName an extra parameter to refer the vehicle type (#6988)

bin/ai/compat_1.2.nut

@@ -8,3 +8,10 @@
  */
 
 AILog.Info("1.2 API compatibility in effect.");
+
+/* 1.9 adds a vehicle type parameter. */
+AIBridge._GetName <- AIBridge.GetName;
+AIBridge.GetName <- function(bridge_id)
+{
+	return AIBridge._GetName(bridge_id, AIVehicle.VT_RAIL);
+}