Add missing return type from method tags

[villfa]

Hi,

When a method is documented with the method tag, its return type is ignored.

Given this sample:

<?php
/**
 * @method string test()
 */
class Foo
{
    public function __call() {
        return 'OK';
    }
}

BEFORE

AFTER

I could add some tests if needed, but I'll need some guidance.

[jaapio]

Thanks a lot for this fix!.

I think no tests are required at this moment.