title: PartialLinkText doesn't work in typescript
body: <p>I have list of elements as below:</p>
  
  <pre><code>&lt;div class="container-menu" _ngcontent-c13=""&gt;
  &lt;nav _ngcontent-c13=""&gt;
  &lt;ul _ngcontent-c13=""&gt;
  &lt;li _ngcontent-c13=""&gt;
  &lt;a class="" _ngcontent-c13="" href="/32info" role="link" routerlinkactive="active" ng-reflect-router-link="/32info" ng-reflect-router-link-active="active" title="Information"&gt; Information test &lt;/a&gt;
  &lt;/li&gt;
  &lt;li _ngcontent-c13=""&gt;
  &lt;a class="active" _ngcontent-c13="" href="/32address" role="link" routerlinkactive="active" ng-reflect-router-link="/32address" ng-reflect-router-link-active="active" title="Address"&gt; Data address &lt;/a&gt;
  &lt;/li&gt;
  </code></pre>
  
  <p>I wanted to first click on element two and then first in my test. I appealed this way: </p>
  
  <pre><code>element(by.partialLinkText('Data address')).click();
  element(by.partialLinkText('Information test')).click();
  </code></pre>
  
  <p>but this doesn't work now. How can my tester click on these items?</p>