Auto merge of #119760 - matthiaskrgr:rollup-ti2xpp7, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - #117744 (Add -Zuse-sync-unwind)
 - #118649 (Make inductive cycles in coherence ambiguous always)
 - #118979 (Use `assert_unsafe_precondition` for `char::from_u32_unchecked`)
 - #119619 (mir-opt and custom target fixes)
 - #119632 (Fix broken build for ESP IDF due to #119026)
 - #119712 (Adding alignment to the cases to test for specific error messages.)
 - #119734 (Miri subtree update)

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

Author: bors