Auto merge of rust-lang#117180 - matthiaskrgr:rollup-rxhl6ep, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - rust-lang#117111 (Remove support for alias `-Z instrument-coverage`)
 - rust-lang#117141 (Require target features to match exactly during inlining)
 - rust-lang#117152 (Fix unwrap suggestion for async fn)
 - rust-lang#117154 (implement C ABI lowering for CSKY)
 - rust-lang#117159 (Work around the fact that `check_mod_type_wf` may spuriously return `ErrorGuaranteed`)
 - rust-lang#117163 (compiletest: Display compilation errors in mir-opt tests)
 - rust-lang#117173 (Make `Iterator` a lang item)

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

Author: bors

core/src/iter/traits/iterator.rs

@@ -69,6 +69,7 @@ fn _assert_is_object_safe(_: &dyn Iterator<Item = ()>) {}
     message = "`{Self}` is not an iterator"
 )]
 #[doc(notable_trait)]
+#[cfg_attr(not(bootstrap), lang = "iterator")]
 #[rustc_diagnostic_item = "Iterator"]
 #[must_use = "iterators are lazy and do nothing unless consumed"]
 pub trait Iterator {