Auto merge of #117881 - TaKO8Ki:rollup-n7jtmgj, r=TaKO8Ki

Rollup of 5 pull requests

Successful merges:

 - #117737 (Remove `-Zkeep-hygiene-data`.)
 - #117830 (Small improvements in object lifetime default code)
 - #117858 (Compute layout with spans for better cycle errors in coroutines)
 - #117863 (Remove some unused stuff from `rustc_index`)
 - #117872 (Cranelift isn't available on non-nightly channels)

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

Author: bors