Auto merge of #113508 - matthiaskrgr:rollup-xzrp4nt, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - #111618 (Always name the return place.)
 - #113247 (Add Tests for native wasm exceptions)
 - #113273 (Use String or Int to set the opt level)
 - #113469 (Remove `default_free_fn` feature)
 - #113493 (additional io::copy specializations)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors