kernel32/tests: Fix a failing test in vista

[Dmitry Timoshkov]

"Nicolas Le Cam" <niko.lecam at gmail.com> wrote:

> Vista introduced new flags for CompareString, as stated in [1].
> The value defined for LINGUISTIC_IGNORECASE is 0x10. So the invalid flag
> test don't fail as expected starting from this platform.
> 
> [1] http://msdn.microsoft.com/en-us/library/ms647476.aspx

LINGUISTIC_IGNORECASE should be added first instead of using a hex value,
and CompareString implementation should handle that flag as well.

-- 
Dmitry.