fix lint issues

Author: dfreedm

test/unit/polymer-dom-nopatch.html

@@ -553,7 +553,7 @@
     assert.equal(getComputedStyle(el.$.className)['padding-top'], '4px');
     assert.isTrue(el.$.className.classList.contains('style-scope'));
     document.body.removeChild(el);
-  })
+  });
 
 });
 </script>

test/unit/polymer-dom.html

@@ -534,7 +534,7 @@
     assert.equal(getComputedStyle(el.$.className)['border-top-width'], '12px');
     assert.equal(getComputedStyle(el.$.className)['padding-top'], '4px');
     document.body.removeChild(el);
-  })
+  });
 
 });
 </script>