Re: [PATCH v2 0/4] MR8592: ntdll: Make wait in wait_async() always non-alertable.

[Paul Gofman (＠gofman)]

v2:
 - Add test for interrupting alertable IO with IO completion APC from previous IO;
 - Add test for forced blocking IO with pre-queued APC on alertable handle;
 - Fix typo in test context;
 - Add explicit alertable_wait parameter and don't ever set it for forced synchronous IO;
 - Use fd_cancel_async() instead of async_terminate() in async_handoff();
 - Comment on the change in async_terminate() ensuring completion on async canceling. I changed the text of comment because the change fixes not only canceling with user APC but also with NtCancelSynchronousIoFile().
 - nest 'if' in async_set_result().