Auto merge of rust-lang#149717 - matthiaskrgr:rollup-spntobh, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - rust-lang#149659 (Look for typos when reporting an unknown nightly feature)
 - rust-lang#149699 (Implement `Vec::from_fn`)
 - rust-lang#149700 (rustdoc: fix bugs with search aliases and merging)
 - rust-lang#149713 (Update windows-gnullvm platform support doc)
 - rust-lang#149716 (miri subtree update)

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

Author: bors