Auto merge of #129817 - matthiaskrgr:rollup-ll2ld5m, r=matthiaskrgr

Rollup of 12 pull requests

Successful merges:

 - #129659 (const fn stability checking: also check declared language features)
 - #129711 (Expand NLL MIR dumps)
 - #129730 (f32 docs: define 'arithmetic' operations)
 - #129733 (Subtree update of `rust-analyzer`)
 - #129749 (llvm-wrapper: adapt for LLVM API changes)
 - #129757 (Add a test for trait solver overflow in MIR inliner cycle detection)
 - #129760 (Make the "detect-old-time" UI test more representative)
 - #129767 (Remove `#[macro_use] extern crate tracing`, round 4)
 - #129774 (Remove `#[macro_use] extern crate tracing` from rustdoc and rustfmt)
 - #129785 (Miri subtree update)
 - #129791 (mark joboet as on vacation)
 - #129812 (interpret, codegen: tweak some comments and checks regarding Box with custom allocator)

Failed merges:

 - #129777 (Add `unreachable_pub`, round 4)

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

1 files changed, 2 insertions, 0 deletions

diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
index dc59e9349b0..17a9630c655 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
@@ -216,6 +216,8 @@ fn build_pointer_or_reference_di_node<'ll, 'tcx>(
                     //        need to make sure that we don't break existing debuginfo consumers
                     //        by doing that (at least not without a warning period).
                     let layout_type = if ptr_type.is_box() {
+                        // The assertion at the start of this function ensures we have a ZST allocator.
+                        // We'll make debuginfo "skip" all ZST allocators, not just the default allocator.
                         Ty::new_mut_ptr(cx.tcx, pointee_type)
                     } else {
                         ptr_type