[wasm] Add the test for Error.isError(WebAssembly.Exception) #56918
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According to the spec discussion, the current `WebAssembly.Exception` does not have `[[ErrorData]]` semantically. - WebAssembly/spec#1914 - https://webassembly.github.io/spec/js-api/#exceptions - https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-properties-of-error-instances
Ms2ger
approved these changes
Jan 5, 2026
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According to the spec discussion, the current
WebAssembly.Exceptiondoes not have[[ErrorData]]semantically.Thus
Error.isError(WebAssembly.Exception) === false.