[PATCH 4/4] api-ms-win-core-winrt-string-l1-1-0: Add tests.

[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=10659

Your paranoid android.


=== build (build) ===
Can't determine base name