[Web API type definition issue] WebAssembly.Module interface is empty, allowing invalid assignments

[nickbabcock]

Summary

The WebAssembly.Module interface is currently emitted as an empty interface, making it structurally compatible with any object in TypeScript

Expected vs. Actual Behavior

const abc: WebAssembly.Module = 0;

I would expect the above to be a compilation error.

But WebAssembly.Module gets emitted as an empty interface allowing all assignments.

interface Module { }

Playground Link

https://www.typescriptlang.org/play/?#code/MYewdgzgLgBAhgI2ALhgdQKYIIIQhgWwQBsBPAOgFkQATAV2IxgF4YAGAbiA

Browser Support

• This API is supported in at least two major browser engines (not two Chromium-based browsers).

Have Tried The Latest Releases

• This issue applies to the latest release of TypeScript.
• This issue applies to the latest release of @types/web.

Additional Context

Do we need to make WebAssembly.Module nominally typed? 🫣

I'm not aware of any other interfaces with only constructors/static methods but no instance members

[Renegade334]

Relates to #2075. I suspect that adding Symbol.toStringTag properties for the TS 6.0 DOM libs is the definitive fix for these cases.