Rollup of 9 pull requests Successful merges: - #104012 (Improve unexpected close and mismatch delimiter hint in TokenTreesReader) - #104252 (Stabilize the const_socketaddr feature) - #105524 (Replace libc::{type} with crate::ffi::{type}) - #107096 (Detect references to non-existant messages in Fluent resources) - #107355 (Add regression test for #60755) - #107384 (Remove `BOOL_TY_FOR_UNIT_TESTING`) - #107385 (Use `FallibleTypeFolder` for `ConstInferUnifier` not `TypeRelation`) - #107391 (rustdoc: remove inline javascript from copy-path button) - #107398 (Remove `ControlFlow::{BREAK, CONTINUE}`) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
macro_rules!
