run-webkit-tests a/b shouldn't run platform/mac/a/b

[gsnedders]

3c10a48

run-webkit-tests a/b shouldn't run platform/mac/a/b
https://bugs.webkit.org/show_bug.cgi?id=251847

Reviewed by Jonathan Bedard.

If you want the prior behaviour, you must run
`run-webkit-tests a/b 'platform/*/a/b'`.

* Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_finder_legacy.py:
(LayoutTestFinder.find_tests_by_path): Remove _expanded_paths.
(LayoutTestFinder._expanded_paths): Deleted.
* Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_finder_legacy_unittest.py:
(LayoutTestFinderTests.test_find_platform_specific): Renamed to test_find_file_excludes_platform_specific.
(LayoutTestFinderTests.test_find_directory_includes_platform_specific): Renamed to test_find_directory_excludes_platform_specific, changed expectation.
* Tools/Scripts/webkitpy/layout_tests/run_webkit_tests_integrationtest.py:
(RunTest.serial_test_platform_tests_are_not_found):
(RunTest.serial_test_platform_tests_are_found): Renamed to serial_test_platform_tests_are_not_found, changed expectation.

Canonical link: https://commits.webkit.org/264151@main

c03a6fc

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	⏳ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🛠 gtk
✅ 🧪 webkitpy	⏳ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv	❌ 🧪 mac-AS-debug-wk2
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2-stress
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on previous version of this PR (hash 5bd20cb)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🛠 gtk
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 gtk-wk2
✅ 🧪 webkitpy	✅ 🧪 api-ios	✅ 🧪 mac-wk1	🧪 api-gtk
	✅ 🛠 tv	✅ 🧪 mac-wk2
	✅ 🛠 tv-sim	🧪 mac-AS-debug-wk2
	✅ 🛠 watch	✅ 🧪 mac-wk2-stress
	✅ 🛠 watch-sim

[gsnedders]

(That push was purely a commit message change)

[webkit-early-warning-system]

EWS run on current version of this PR (hash c03a6fc)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	⏳ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🛠 gtk
✅ 🧪 webkitpy	⏳ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv	❌ 🧪 mac-AS-debug-wk2
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2-stress
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-commit-queue]

Committed 264151@main (3c10a48): https://commits.webkit.org/264151@main

Reviewed commits have been landed. Closing PR #9753 and removing active labels.