fix lint error

Author: dfreedm

test/unit/dir.html

@@ -164,10 +164,10 @@
     <script>
       addEventListener('WebComponentsReady', () => {
         class XComplicated extends Polymer.DirMixin(Polymer.Element) {
-          static get is() {return 'x-complicated'}
+          static get is() {return 'x-complicated';}
         }
         customElements.define(XComplicated.is, XComplicated);
-      })
+      });
     </script>
   </dom-module>