Rollup merge of #126964 - Oneirical:total-catestrophe, r=Kobzol

Migrate `lto-empty`, `invalid-so` and `issue-20626` `run-make` tests to rmake.rs

Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).

Author: matthiaskrgr