Implemented wrap_item_write

Update wrap_item

Fixes rust-lang#111184 by encoding ty::Generator parent substs only.

Signed-off-by: cui fliter <imcusg@gmail.com>

…BoxyUwU

Require that const param tys implement `ConstParamTy`

1. Require that const param tys implement `ConstParamTy` instead of using `search_for_adt_const_param_violation`
2. Add `StructuralPartialEq` as a supertrait for `ConstParamTy`, since we need to make sure that we derive *both* `PartialEq` and `Eq`
3. Implement `ConstParamTy` for tuples up to 12 (or whatever the default for tuples is)
4. Add some custom diagnostics to `ConstParamTy` errors, to avoid regressions from (1.). It's still not as great as it could be -- will point out inline in comments.

r? `@BoxyUwU`

…piler-errors

CFI: Fix cfi with async: transform_ty: unexpected GeneratorWitness(Bi…

Fixes rust-lang#111184 by encoding ty::Generator parent substs only.

…aumeGomez

Migrate `item_trait_alias` to Askama

This PR migrates `item_trait_alias` to Askama

Refers rust-lang#108868

Support 128-bit atomics on all x86_64 Apple targets

On x86_64, we currently set `max_atomic_width` to 128 only on macOS.

https://github.com/rust-lang/rust/blob/ad8304a0d5280de30856b39c19df7b306957e878/compiler/rustc_target/src/spec/x86_64_apple_darwin.rs#L8

However, other x86_64 Apple targets (iOS, tvOS, and watchOS) are also core2+ and support cmpxchg16b.

https://github.com/rust-lang/rust/blob/ad8304a0d5280de30856b39c19df7b306957e878/compiler/rustc_target/src/spec/apple_base.rs#L71-L76

```console
# Script to get targets that support cmpxchg16b by default:
$ (for target in $(rustc --print target-list); do [[ $target == "x86_64"* ]] && rustc --print cfg --target "$target" | grep -q cmpxchg16b && echo "$target"; done)
x86_64-apple-darwin
x86_64-apple-ios
x86_64-apple-ios-macabi
x86_64-apple-tvos
x86_64-apple-watchos-sim
x86_64h-apple-darwin
```

r? `@Amanieu`

Fix broken link

The previous link is no longer accessible.

Use the latest link.

…t-GlobalCtxt, r=compiler-errors

Improve comments on `TyCtxt` and `GlobalCtxt`.

By adding some non-obvious information that took me a little while to figure out.

r? `@compiler-errors`

…=est31

Check tuple elements are `Sized` in `offset_of`

Fixes rust-lang#112186