Bug 309696 – [run-webkit-tests] Extend --test-list to support inline TestExpectations syntax

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Basuke Suzuki]

When investigating specific sets of tests (e.g., triaging failures, running a curated subset for a feature area), it is useful to annotate individual tests in the list file itself rather than editing the global TestExpectations files. This avoids polluting the shared expectations and allows ad-hoc, per-session control over test behavior.

The `--test-list` option for `run-webkit-tests` accepts a text file listing test paths to run. Currently, the file format only supports plain test paths (one per line) with `//` comments. There is no way to annotate individual tests with expectations.

This change extends the `--test-list` file format to support inline expectations using the standard TestExpectations bracket syntax:

```
# plain paths (existing behavior, unchanged)
fast/dom/test1.html

# with inline expectations (new)
fast/dom/test2.html [ Skip ]
fast/dom/test3.html [ Slow ]
fast/dom/test4.html [ Pass Failure ]
```

[Basuke Suzuki]

rdar://172301315

[Basuke Suzuki]

Pull request: https://github.com/WebKit/WebKit/pull/60381

[EWS]

Committed 309087@main (cb97940984ae): <https://commits.webkit.org/309087@main>

Reviewed commits have been landed. Closing PR #60381 and removing active labels.