[ macOS wk2 ] REGRESSION(~r259096): fast/text/international/system-language/declarative-language.html is constantly failing

[Jacob Uphoff]

fast/text/international/system-language/declarative-language.html

This test has been a constant failure on macOS wk1 for a while but is now failing on Catalina wk2 since around commit r259096.

History:

https://results.webkit.org/?suite=layout-tests&test=fast%2Ftext%2Finternational%2Fsystem-language%2Fdeclarative-language.html&version_name=Catalina&flavor=wk2

Diff:

--- /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/fast/text/international/system-language/declarative-language-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/fast/text/international/system-language/declarative-language-actual.txt
@@ -1,6 +1,6 @@
-PASS internals.userPreferredLanguages().length is 2
+FAIL internals.userPreferredLanguages().length should be 2. Was 1.
 PASS internals.userPreferredLanguages()[0].startsWith('ko') is true
-PASS internals.userPreferredLanguages()[1].startsWith('zh') is true
+FAIL internals.userPreferredLanguages()[1].startsWith('zh') should be true. Threw exception TypeError: undefined is not an object (evaluating 'internals.userPreferredLanguages()[1].startsWith')
 PASS internals.userPreferredLanguages().length is 3
 PASS internals.userPreferredLanguages()[0] is "hi"
 PASS internals.userPreferredLanguages()[1] is "jp"

[Radar WebKit Bug Importer]

<rdar://problem/61057047>

[Ryan Haddad]

This showed up after the bots were updated to 10.15.4. I think this is a dupe of https://bugs.webkit.org/show_bug.cgi?id=208023

*** This bug has been marked as a duplicate of bug 208023 ***