Auto merge of #135319 - matthiaskrgr:rollup-un5lol6, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - #133088 (`-Zrandomize-layout` harder. `Foo<T> != Foo<U>`)
 - #134619 (Improve prose around `as_slice` example of IterMut)
 - #134855 (Add `default_field_values` entry to unstable book)
 - #134908 (Fix `ptr::from_ref` documentation example comment)
 - #135275 (Add Pin::as_deref_mut to 1.84 relnotes)
 - #135294 (Make `bare-fn-no-impl-fn-ptr-99875` test less dependent on path width)
 - #135304 (Add tests cases from review of #132289)
 - #135308 (Make sure to walk into nested const blocks in `RegionResolutionVisitor`)

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

Author: bors

crates/hir-ty/src/layout.rs

@@ -197,6 +197,7 @@ fn layout_of_simd_ty(
         align,
         max_repr_align: None,
         unadjusted_abi_align: align.abi,
+        randomization_seed: 0,
     }))
 }
 
@@ -313,6 +314,7 @@ pub fn layout_of_ty_query(
                 size,
                 max_repr_align: None,
                 unadjusted_abi_align: element.align.abi,
+                randomization_seed: 0,
             }
         }
         TyKind::Slice(element) => {
@@ -326,6 +328,7 @@ pub fn layout_of_ty_query(
                 size: Size::ZERO,
                 max_repr_align: None,
                 unadjusted_abi_align: element.align.abi,
+                randomization_seed: 0,
             }
         }
         TyKind::Str => Layout {
@@ -337,6 +340,7 @@ pub fn layout_of_ty_query(
             size: Size::ZERO,
             max_repr_align: None,
             unadjusted_abi_align: dl.i8_align.abi,
+            randomization_seed: 0,
         },
         // Potentially-wide pointers.
         TyKind::Ref(_, _, pointee) | TyKind::Raw(_, pointee) => {