Add %test:stats annotation

Author: adamretter

data/xqsuite.xml

@@ -202,6 +202,13 @@ function fd:simple-date($date as xs:date) as xs:string {
                         of tests that are present but not yet executed.</para>
                     </listitem>
                 </varlistentry>
+                <varlistentry>
+                    <term>%test:stats</term>
+                    <listitem>
+                        <para>Collects statistics using <code>system:trace()</code> and prepends them as an element (<code>&lt;stats:calls xmlns:stats="http://exist-db.org/xquery/profiling"&gt;</code>) to the returned sequence
+                        of the test function.</para>
+                    </listitem>
+                </varlistentry>
                 <varlistentry>
                     <term>%test:setUp, %test:tearDown</term>
                     <listitem>
@@ -300,4 +307,4 @@ test:suite(
 &lt;/testsuites&gt;</programlisting>
         </section>
     </chapter>
-</book>
+</book>