Auto merge of #142447 - dianqk:llvm-20.1.7, r=nikic

Update to LLVM 20.1.7

Closes rust-lang/rust#141306, closes rust-lang/rust#140686, closes rust-lang/rust#141737, closes rust-lang/rust#140933.
diff --git a/crates/hir-expand/src/inert_attr_macro.rs b/crates/hir-expand/src/inert_attr_macro.rs
index 543ac06..385c98e 100644
--- a/crates/hir-expand/src/inert_attr_macro.rs
+++ b/crates/hir-expand/src/inert_attr_macro.rs
@@ -486,7 +486,7 @@
         rustc_legacy_const_generics, Normal, template!(List: "N"), ErrorFollowing,
         INTERNAL_UNSTABLE
     ),
-    // Do not const-check this function's body. It will always get replaced during CTFE.
+    // Do not const-check this function's body. It will always get replaced during CTFE via `hook_special_const_fn`.
     rustc_attr!(
         rustc_do_not_const_check, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE
     ),