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    # There's faster ways to do this, but this is easiest.
    local $^W = 0;

    # It really doesn't matter how we sort them, as long as both arrays are 
    # sorted with the same algorithm.
    #
    # Ensure that references are not accidentally treated the same as a
    # string containing the reference.
    #
    # Have to inline the sort routine due to a threading/sort bug.
    # See [rt.cpan.org 6782]
    #
    # I don't know how references would be sorted so we just don't sort
    # them.  This means eq_set doesn't really work with refs.
    return eq_array(
           [grep(ref, @$a1), sort( grep(!ref, @$a1) )],
           [grep(ref, @$a2), sort( grep(!ref, @$a2) )],
    );
}