[webkit-changes] [WebKit/WebKit] a2bcc4: [Wasm-GC] Fix JS API casts for some top types

[Asumu Takikawa]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: a2bcc4921f7ca88a4480806eee8c2eaa63611ea0
      https://github.com/WebKit/WebKit/commit/a2bcc4921f7ca88a4480806eee8c2eaa63611ea0
  Author: Asumu Takikawa <asumu at igalia.com>
  Date:   2024-03-22 (Fri, 22 Mar 2024)

  Changed paths:
    M JSTests/wasm/gc/js-api.js
    M Source/JavaScriptCore/wasm/WasmTypeDefinition.cpp

  Log Message:
  -----------
  [Wasm-GC] Fix JS API casts for some top types
https://bugs.webkit.org/show_bug.cgi?id=270374

Reviewed by Justin Michaud.

Fixes too-optimistic assumption about static validation for top type casts.

* JSTests/wasm/gc/js-api.js:
(testCastFailure):
* Source/JavaScriptCore/wasm/WasmTypeDefinition.cpp:
(JSC::Wasm::TypeInformation::castReference):

Canonical link: https://commits.webkit.org/276580@main



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