REGRESSION(264714@main) 5% regression in Speedometer 3's Editor-TipTap suite

[litherum]

34f8381

REGRESSION(264714@main) 5% regression in Speedometer 3's Editor-TipTap suite
https://bugs.webkit.org/show_bug.cgi?id=258259
rdar://110926113

Reviewed by Ryosuke Niwa.

There's no need to use the fancy NSString subclass if there is no prior context.
The whole reason the NSString subclass exists is to deal with the prior context.
If we can use CFString directly, that's faster.

* Source/WTF/wtf/text/cf/TextBreakIteratorCFCharacterCluster.h:
(WTF::TextBreakIteratorCFCharacterCluster::setText):
* Source/WTF/wtf/text/cf/TextBreakIteratorCFStringTokenizer.h:
(WTF::TextBreakIteratorCFStringTokenizer::TextBreakIteratorCFStringTokenizer):
(WTF::TextBreakIteratorCFStringTokenizer::setText):
(WTF::TextBreakIteratorCFStringTokenizer::createString):

Canonical link: https://commits.webkit.org/265280@main

7056bb3

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	🧪 api-mac	✅ 🛠 gtk
	✅ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	🧪 gtk-wk2
✅ 🛠 🧪 jsc	🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 api-gtk
✅ 🛠 🧪 jsc-arm64	✅ 🛠 tv	🧪 mac-AS-debug-wk2	✅ 🛠 jsc-armv7
	✅ 🛠 tv-sim		✅ 🧪 jsc-armv7-tests
✅ 🛠 🧪 merge	✅ 🛠 watch		✅ 🛠 jsc-mips
	✅ 🛠 watch-sim		✅ 🧪 jsc-mips-tests

[webkit-early-warning-system]

EWS run on current version of this PR (hash 7056bb3)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	🧪 api-mac	✅ 🛠 gtk
	✅ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	🧪 gtk-wk2
✅ 🛠 🧪 jsc	🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 api-gtk
✅ 🛠 🧪 jsc-arm64	✅ 🛠 tv	🧪 mac-AS-debug-wk2	✅ 🛠 jsc-armv7
	✅ 🛠 tv-sim		✅ 🧪 jsc-armv7-tests
✅ 🛠 🧪 merge	✅ 🛠 watch		✅ 🛠 jsc-mips
	✅ 🛠 watch-sim		✅ 🧪 jsc-mips-tests

[webkit-commit-queue]

Committed 265280@main (34f8381): https://commits.webkit.org/265280@main

Reviewed commits have been landed. Closing PR #15078 and removing active labels.