Auto merge of #117574 - onur-ozkan:fix-compiler-crate-linking, r=Mark-Simulacrum

improve compiler&tool documenting and re-enable cranelift on CI

First commit addresses the linking issue with compiler crates. Second one ensures that compiler crates are linked correctly (with later commits we added this check for tools as well), allowing us to detect these hard-to-catch bugs on CI. Following three commits cherry-picked from #117328 to re-enable the Cranelift backend on CI.

More info: rust-lang/rust#117430

cc `@bjorn3` `@RalfJung`

Author: bors