msctf: Improved ITfKeystrokeMgr::TestKeyUp and TestKeyDown stubs.

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?
Full results can be found at
https://testbot.winehq.org/JobDetails.pl?Key=22836

Your paranoid android.


=== wvistau64 (32 bit inputprocessor) ===
inputprocessor.c:254: Test failed: Unexpected TextStoreACP_RequestLock sink
inputprocessor.c:275: Test failed: Unexpected TextStoreACP_GetSelection sink
inputprocessor.c:1241: Test failed: eaten = 1

=== w2008s64 (32 bit inputprocessor) ===
inputprocessor.c:254: Test failed: Unexpected TextStoreACP_RequestLock sink
inputprocessor.c:275: Test failed: Unexpected TextStoreACP_GetSelection sink
inputprocessor.c:1241: Test failed: eaten = 1

=== w864 (32 bit inputprocessor) ===
inputprocessor.c:793: Test failed: Deactivation came unexpectedly

=== wvistau64 (64 bit inputprocessor) ===
inputprocessor.c:254: Test failed: Unexpected TextStoreACP_RequestLock sink
inputprocessor.c:275: Test failed: Unexpected TextStoreACP_GetSelection sink
inputprocessor.c:1241: Test failed: eaten = 1

=== w2008s64 (64 bit inputprocessor) ===
inputprocessor.c:254: Test failed: Unexpected TextStoreACP_RequestLock sink
inputprocessor.c:275: Test failed: Unexpected TextStoreACP_GetSelection sink
inputprocessor.c:1241: Test failed: eaten = 1