This CL brings the android.md file in-line with the list of supported
targets from platform-support.md.

…+CMSG

This is a 100% race-free way to obtain a child's pidfd while
avoiding `clone3`.

Tracking issue: rust-lang#110998.

The [API guidelines][naming] describe `as` as used for
borrowed -> borrowed operations, and `to_` for
owned -> owned operations on `Copy` types.

[naming]: https://rust-lang.github.io/api-guidelines/naming.html

…imulacrum

open pidfd in child process and send to the parent via SOCK_SEQPACKET+CMSG

This avoids using `clone3` when a pidfd is requested while still getting it in a 100% race-free manner by passing it up from the child process.
This should solve most concerns in rust-lang#82971

…, r=davidtwco

Migrate a trait selection error to use diagnostic translation

fix: not insert missing lifetime for `ConstParamTy`

Fixes rust-lang#113462

We should ignore the missing lifetime, as it's illegal to include a lifetime in a const param.

r? ``@compiler-errors``

…pdate, r=Mark-Simulacrum

Mention riscv64-linux-android support in Android documentation

This CL brings the android.md file in-line with the list of supported targets from platform-support.md.

Followup to rust-lang#112858

r? `@Mark-Simulacrum`

…ons, r=spastorino

Remove old RPITIT tests (revisions were removed)

These tests were not cleaned up after rust-lang#112988.

r? `@spastorino`

…cottmcm

Rename copying `ascii::Char` methods from `as_` to `to_`

Tracking issue: rust-lang#110998.

The [API guidelines][naming] describe `as_` as used for borrowed -> borrowed operations, and `to_` for
owned -> owned operations on `Copy` types.

[naming]: https://rust-lang.github.io/api-guidelines/naming.html