Fix compiler error when exporting integers while emitting tsd

[jeremy-code]

• Fixes Emitting TSD errors when exporting POINTER_SIZE #26589
• Replaces concatenation (which can error when snippet is an int) with f-string
• Update test_other.py to include POINTER_SIZE

---

Sorry, this is a duplicate of #26590. I had deleted the branch last week since I thought it had already been merged, so I am reopening it.

[sbc100]

It looks like you need to run ./test/runner other.test_emit_tsd_jspi --rebaseline

[jeremy-code]

I just did:

(.venv)  ✘ jeremy@MacBookAir  ~github/emscripten   26589  ./test/runner.py other.test_emit_tsd_jspi --rebaseline
config:WARNING: Found list-style config entry (['/Users/jeremy/.nodenv/shims/node']).  Please use a single string with spaces between args.
config:WARNING: Found list-style config entry (['/Users/jeremy/.nodenv/shims/node']).  Please use a single string with spaces between args.
Running 1 tests

Didn't seem to produce any artifacts that I could commit, is something wrong?

[sbc100]

Somehow test/other/test_emit_tsd_jspi.d.ts should be updated too.

If you run that test without rebaseline argument does it not fail (like its in CI)?