hl-line should be updated when overlay-arrow-position is changed

[Kevin A. Burton]

OK.

I am playing around with a debugger that is setting overlay-arrow-position for
every debug step.

The only problem is that this is sort of confusing as the `hl-line-mode' line
isn't updated.  AKA it is one line behind the overlay arrow.

Example:

    ------------------- and the hl-line is here --------------- 
--> this is where the arrow would be


... (does that make sense)

Can anyone think of a way around this?  I can't think of anything elegant :(

Kevin

-- 
Kevin A. Burton ( address@hidden, address@hidden, address@hidden )
             Location - San Francisco, CA, Cell - 415.595.9965
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The art of progress is to preserve order amid change and to preserve change
amid order.

  - Alfred North Whitehead, Science and the Modern World