Show inherited methods in extended module

I'm trying to use @extends but it seems this only marks an item as extending another, it doesn't actually seem to then inherit its public properties.

It would be nice if when extending another module the module that does the extending shows the methods that it inherited from the parent.

So take the following example:

/**
 * @module: foo
 */
(function()
{

    /**
     * @name bar
     * @method
     */
    this.bar = function()
    {
        console.log("foobar");
    }

}).apply(module.exports);

/**
 * @module foobar
 * @extends module:foo
 */
(function() 
{

    // ..

}).apply(module.exports);

Now when I generate the documentation for "foobar" the foobar documentation page should show the method "bar". At the moment the documentation page just tells you that it is extending module:bar.

Start by tracing how @extends is handled when generating module documentation, using the foo and foobar example in the issue. Confirm the current output, then verify that foobar displays the inherited public method bar while retaining its parent-module relationship.