fix completion for classes starting with "use"

[vol0da]

if you initiate a completion for a class starting with "use" (User) the completion is built as if it was for "use" statement.

class User
{
    public static function staticMethod()
    {

    }
}

User::

you will get a list of all classes instead of a list of all static methods

[complex857]

Thank you for the patch (excuse me while i go to find my brown paper bag :-P)