Menu tests: Fix test id's so that they are unique to pass linting

Author: kborchers

tests/unit/menu/menu.html

@@ -55,7 +55,7 @@ <h2 id="qunit-userAgent"></h2>
 	<li class="foo"><a class="foo" href="#">Aberdeen</a></li>
 	<li class="foo"><a class="foo" href="#">Ada</a></li>
 	<li class="foo"><a class="foo" href="#">Adamsville</a></li>
-	<li class="foo"><a id="testID" class="foo" href="#">Addyston</a></li>
+	<li class="foo"><a id="testID1" class="foo" href="#">Addyston</a></li>
 	<li class="foo"><a class="foo" href="#">Adelphi</a></li>
 </ul>
 
@@ -235,7 +235,7 @@ <h2 id="qunit-userAgent"></h2>
 				<a href="#">Delphi</a>
 				<div>
 					<blockquote><a href="#">Ada</a></blockquote>
-					<blockquote><a id="testID" href="#">Saarland</a></blockquote>
+					<blockquote><a id="testID2" href="#">Saarland</a></blockquote>
 					<blockquote><a href="#">Salzburg</a></blockquote>
 				</div>
 			</blockquote>
@@ -258,7 +258,7 @@ <h2 id="qunit-userAgent"></h2>
 	<li class="foo"><a class="foo" href="#">Adamsville</a></li>
 	<li class="foo"><a class="foo" href="#">Addyston</a></li>
 	<li class="ui-state-disabled">
-		<a id="testID" href="#">Delphi</a>
+		<a id="testID3" href="#">Delphi</a>
 		<ul>
 			<li class="foo"><a class="foo" href="#">Ada</a></li>
 			<li class="foo"><a class="foo" href="#">Saarland</a></li>