Auto merge of #129665 - matthiaskrgr:rollup-hy23k7d, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - #129507 (make it possible to enable const_precise_live_drops per-function)
 - #129581 (exit: explain our expectations for the exit handlers registered in a Rust program)
 - #129634 (Fix tidy to allow `edition = "2024"` in `Cargo.toml`)
 - #129635 (Use unsafe extern blocks throughout the compiler)
 - #129645 (Fix typos in floating-point primitive type docs)
 - #129648 (More `unreachable_pub`)
 - #129649 (ABI compat check: detect unadjusted ABI mismatches)
 - #129652 (fix Pointer to reference conversion docs)

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

compiler/rustc_interface/src/lib.rs

@@ -2,6 +2,7 @@
 #![feature(decl_macro)]
 #![feature(let_chains)]
 #![feature(try_blocks)]
+#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod callbacks;