Bug 269895 – `run-webkit-tests --print-expectations -v` should print all considered expectation lines

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Gerald Squelart]

Currently, for each test `run-webkit-tests --print-expectations` only displays the one line in all TestExpectations files that is used to determine the test expectation(s).

I think it would be useful sometimes to know all the TextExpectations lines that were considered before and after.

E.g., current output:
```
% run-webkit-tests http/tests/resourceLoadStatistics/prune-statistics.html --print-expectations
http/tests/resourceLoadStatistics/prune-statistics.html  ['PASS'] LayoutTests/platform/wk2/TestExpectations:735 http/tests/resourceLoadStatistics/prune-statistics.html [ Pass ]
```

Proposed expanded output when adding `-v`:
```
% run-webkit-tests http/tests/resourceLoadStatistics/prune-statistics.html --print-expectations -v
http/tests/resourceLoadStatistics/prune-statistics.html  v  ['SKIP'] LayoutTests/TestExpectations:210 http/tests/resourceLoadStatistics/ [ Skip ]
                                                         -> ['PASS'] LayoutTests/platform/wk2/TestExpectations:735 http/tests/resourceLoadStatistics/prune-statistics.html [ Pass ]
                                                         ^  ['PASS'] LayoutTests/platform/wk2/TestExpectations:736 http/tests/resourceLoadStatistics [ Pass ]
```
This shows that there was a directory-level SKIP before, which the selected PASS overrode, and further there was another directory-level PASS that was ignored (probably because it didn't change the result and/or was broader).

[Radar WebKit Bug Importer]

<rdar://problem/123424189>

[Gerald Squelart]

Pull request: https://github.com/WebKit/WebKit/pull/24932

[EWS]

Committed 283176@main (70c0d8553e42): <https://commits.webkit.org/283176@main>

Reviewed commits have been landed. Closing PR #24932 and removing active labels.