[1/3] usp10/tests: Add tests for control character glyphs.

[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=15955

Your paranoid android.


=== wvistau64 (32 bit usp10) ===
Failure running script in VM: timed out waiting for the child process