Add test for jsdoc in navigation bar

Author: Andy Hanson

tests/cases/fourslash/navigationBarJsDoc.ts

@@ -0,0 +1,21 @@
+/// <reference path="fourslash.ts"/>
+
+// @Filename: foo.js
+/////** @typedef {(number|string)} NumberLike */
+/////** @typedef {(string|number)} */
+////const x = 0;
+
+verify.navigationBar([
+  {
+    "text": "NumberLike",
+    "kind": "type"
+  },
+  {
+    "text": "x",
+    "kind": "type"
+  },
+  {
+    "text": "x",
+    "kind": "var"
+  }
+]);