user32: Fix 64-bit 'msg' test hang in test_timers (try 2).

[Dmitry Timoshkov]

"Erich E. Hoover" <ehoover at mines.edu> wrote:

> > Why not use kernel32.RaiseException (which is always available) instead?
> 
> MSDN indicates that RaiseException is only available starting with
> win2k, is it actually safe to use?  I used RtlRaiseException because
> that's what's used in the ntdll tests and I saw no other exception
> raising examples in a quick "grep" though Wine's tests.

kernel32.RaiseException is just a wrapper around an ntdll one. I'd expect
the kernel32 API be always available despite what MSDN claims.

-- 
Dmitry.