Adding check for out of order numbers

src/js/parser/javascript/repeat_spec.js

@@ -15,5 +15,9 @@ export default {
     } else {
       this.maximum = -1;
     }
+
+    if (this.minimum > this.maximum && this.maximum !== -1) {
+      throw `Numbers out of order: ${this.textValue}`;
+    }
   }
 };