[WebGPU] WGSL compilation failure opening https://threejs.org/examples/?q=webgpu#webgpu_backdrop_water

[tadeuzagallo]

b1e573c

[WebGPU] WGSL compilation failure opening https://threejs.org/examples/?q=webgpu#webgpu_backdrop_water
https://bugs.webkit.org/show_bug.cgi?id=266823
rdar://120054632

Reviewed by Mike Wyrzykowski.

The spec was updated to add an overload to u32 that accepts abstract_int as an
argument, and this patch updates our implementation to match the updated spec.
This required specializing the constant u32 constructor to handle the abstract_int
special case, since it differs from the other types in that it needs to check
for that can't fit in a u32. It also required fixing a bug in the overload resolution
where a type variable can be resolved to a type that doesn't satisfy its constraints.

* Source/WebGPU/WGSL/ConstantFunctions.h:
(WGSL::CONSTANT_FUNCTION):
* Source/WebGPU/WGSL/Overload.cpp:
(WGSL::OverloadResolver::calculateRank):
* Source/WebGPU/WGSL/TypeDeclarations.rb:
* Source/WebGPU/WGSL/tests/invalid/constants.wgsl:
* Source/WebGPU/WGSL/tests/valid/constants.wgsl:

Canonical link: https://commits.webkit.org/272520@main

a1ad2f4

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	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt		✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv-sim
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on current version of this PR (hash a1ad2f4)

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

[webkit-commit-queue]

Committed 272520@main (b1e573c): https://commits.webkit.org/272520@main

Reviewed commits have been landed. Closing PR #22252 and removing active labels.