user32: make the edit tests pass on Vista.

[Paul Vriens]

Reece Dunn wrote:
> The EM_CHARFROMPOS calls return different results on Vista. This patch
> adds the values returned by Vista as expected results.
> 
> - Reece
> 
> 
> ------------------------------------------------------------------------
> 
> 
If you change the test for multiple correct answers, the corresponding text 
should reflect that as well (it now only say 'expected 0').

-- 
Cheers,

Paul.