message: Add test for shorthandMethod() in a legacy polymer element.
diff: @@ -95,6 +95,7 @@ suite('PolymerElementScanner', () => {
  */
  customPublicMethodWithJsDoc: (foo, bar) => { return foo + bar; },
  customPublicMethodWithClassicFunction: function(foo, bar) { return foo + bar; },
  + shorthandMethod(foo, bar) { return foo + bar; },
  });
  Polymer({
  is: 'x-bar',
  @@ -155,6 +156,7 @@ suite('PolymerElementScanner', () => {
  '_customPrivateMethod',
  'customPublicMethodWithJsDoc',
  'customPublicMethodWithClassicFunction',
  + 'shorthandMethod',
  ]);
  const jsDocMethod =
  