1/4 NtCreateMailslotFile tests

[Jeff L]

Dmitry Timoshkov wrote:
> "Jeff Latimer" <lats at yless4u.com.au> wrote:
>> +    ok( CloseHandle(hslot), "CloseHandle failed\n");
> To close the handle returned by an NT API you have you use an NT API 
> as well.
Have reread MSDN http://msdn2.microsoft.com/en-us/library/ms648410.aspx 
and it seems that NtClose has been superseded by CloseHandle.  So I 
suppose that CloseHandle is the one to use.  Have fixed the other points.

Jeff