Add the "visible" function to the list of query functions.
RELNOTES: None.
@@ -490,6 +490,7 @@ x intersect (y union z)</pre>
<a href="#some">some</a><br/>
<a href="#path-operators">somepath</a><br/>
<a href="#tests">tests</a><br/>
+<a href="#visible">visible</a><br/>
</code>
<h3 id="deps">Transitive closure of dependencies: deps</h3>
