Add no-dup-name rule for inputs (copy of no-dup-id)

Could rule no-dup-id be copied as no-dup-name and report duplicate name attributes in a form? While this is valid, in 99.9% of cases, this is an oversight/bug and unintentional. e.g.

<form action="" method="post">
    First name: <input type="text" name="user">
    Last name: <input type="text" name="user">
    <input type="submit" value="Submit">
</form>

Ideally the uniqueness would reset at </form> though, so multiple forms on the same page can have inputs with the same name without error.