[Bug 56179] New: GitLab fails to run some tests on Windows due to lack of PARENTSRC support

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56179

Bug ID: 56179
           Summary: GitLab fails to run some tests on Windows due to lack
                    of PARENTSRC support
           Product: WineHQ Gitlab
           Version: unspecified
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gitlab-unknown
          Assignee: [e-mail]
          Reporter: [e-mail]

GitLab does not take PARENTSRC into account when running the Windows tests.

For instance MR!4837 introduces a failure in xaudio2_8:xaudio2:
https://gitlab.winehq.org/wine/wine/-/merge_requests/4837/diffs

And yet the 32-bit Windows job shows no failure:
https://gitlab.winehq.org/fgouget/wine/-/jobs/48209

While the 32-bit Linux job shows the expected failure:
https://gitlab.winehq.org/fgouget/wine/-/jobs/48208

This is actually obvious given that the code that builds the list of tests to
run on Windows (winetest.args) contains no reference to PARENTSRC:

- git diff --name-only $CI_MERGE_REQUEST_DIFF_BASE_SHA | sed -re
'//tests//!d; s@/tests/.*@/tests/Makefile.in@' |
      (xargs -r ls 2>/dev/null || true) | xargs -r sed '/TESTDLL/!d; s@.dll@@;
s@.*= *@@' >usr/local/share/wine/winetest.args