Wasm GC introduces (https://github.com/WebAssembly/gc/blob/master/proposals/gc/MVP.md) structural subtyping rules so in this bug we are going to support them.
Created attachment 446147 [details] Patch
This patch modifies one of the wasm.json files. Please ensure that any changes in one have been mirrored to the other. You can find the wasm.json files at "Source/JavaScriptCore/wasm/wasm.json" and "JSTests/wasm/wasm.json".
<rdar://problem/86459038>
This bug is ok to close too, as struct subtyping has landed
Closing since we now have subtyping support. I think https://bugs.webkit.org/show_bug.cgi?id=239668 is a reasonably accurate bug for us to dupe this to. *** This bug has been marked as a duplicate of bug 239668 ***