[embind] Always enable assertions during TypeScript generation.

[brendandahl]

Fixes #21641

[sbc100]

Maybe mention why?

[brendandahl]

Something changed so now when assertions are enabled $FS needs $strError which needs _strerror. _strerror is not exported from the wasm file with assertions disabled. I think previously an assert build didn't have different wasm exports or maybe we weren't testing that.

[brendandahl]

I guess this was #21172. Maybe instead of relying on assert I'll just throw JS exceptions.

[sbc100]

I guess this was #21172. Maybe instead of relying on assert I'll just throw JS exceptions.

Unless you are in strict mode assert should always exist

[brendandahl]

I guess this was #21172. Maybe instead of relying on assert I'll just throw JS exceptions.

Unless you are in strict mode assert should always exist

Yeah, the original issue filed above was using -s STRICT=1.

[brendandahl]

Or I guess I can do ifdefs like all the other library code.

[sbc100]

Can you add curly braces around the if body ?