Use WTF::forward_like instead of std::forward_like

[achristensen07]

6a853b6

Use WTF::forward_like instead of std::forward_like
https://bugs.webkit.org/show_bug.cgi?id=275654
rdar://130130589

Reviewed by Yusuke Suzuki.

Microsoft's STL implementation uses an inferred return type, and clang has some difficulty
seeing that it is actually defined before it is used.  I'm sure we can eventually move back
to using std::forward_like, but since that is the only known blocker to C++23 adoption,
let's do this now and figure out how to switch back to std::forward_like later.

* Source/WTF/wtf/StdLibExtras.h:
(std::forward_like): Deleted.
* Source/WebKit/Platform/IPC/ArgumentCoders.h:
(IPC::ArgumentCoder<std::unique_ptr<T>>::encode):
(IPC::ArgumentCoder<UniqueRef<T>>::encode):

Canonical link: https://commits.webkit.org/280187@main

6087ae0

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

[webkit-early-warning-system]

EWS run on current version of this PR (hash 6087ae0)

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

[webkit-commit-queue]

Committed 280187@main (6a853b6): https://commits.webkit.org/280187@main

Reviewed commits have been landed. Closing PR #29971 and removing active labels.