The tests which are failing were in introduced in #5712. Those were not
included in #5710 which updated `picojson` that resulted in the
different lines being reported in the error messages.
I also added some checks to `ScopeFile` which will indicate that a
temporary file already exists highlighting multi-threading issues and
leftover files from previously aborted testruns. I ran into his while
looking into these failing tests
This is a mess. The version is AUR is still outdated and also doesn't
install anymore. Fedora 38 carries the latest version of it so use that
now. Keep the old steps in case we need to switch again in the future.
* SingleExecutor: added TODOs
* test `SingleExecutor` with files and project
* SingleExecutor: process markup files after code when scanning project
* TestSingleExecutor: generate scoped files before calling executor
* CI-unixish.yml: added `--output-on-failure` to CTest call
* helpers.cpp: improved error reporting in `~ScopedFile()`
* use unique filenames in executor tests to avoid collisions
* fixed `functionStatic` selfcheck warnings