No functional changes intended.

The LLVM commit llvm/llvm-project@e6b0221 added `TargetExtTyID` to the `TypeID` enum. This adapts `RustWrapper` accordingly.

It was disabled in rust-lang#75103 due to an LLVM bug, but followup comments have
confirmed that it builds fine on Fedora with LLVM 15.

llvm-wrapper: adapt for LLVM API change

No functional changes intended.

The LLVM commit llvm/llvm-project@e6b0221 added `TargetExtTyID` to the `TypeID` enum. This adapts `RustWrapper` accordingly.

Improve the documentation of `black_box`

There don't seem to be many great resources on how `black_box` should be used, so I added some information here

…losure, r=TaKO8Ki

Label closure captures/generator locals that make opaque types recursive

cc rust-lang#46415 (comment)

Fix `SingleUseLifetime` ICE

Fixes rust-lang#104440
cc: `@matthiaskrgr`

Re-enable building rust-analyzer on riscv64

It was disabled in rust-lang#75103 due to an LLVM bug, but followup comments have
confirmed that it builds fine on Fedora with LLVM 15.

r? `@Mark-Simulacrum`
cc `@matklad` `@davidlt`

…ulacrum

Add new bootstrap members to triagebot.toml

`@ozkanonur` if you want to be assigned to review PRs too, just post a message to this thread.

Should a `T-bootstrap` label be created, since `src/tools/tidy` is assigned to the `bootstrap` members, but labeled `A-testsuite` (and not `A-bootstrap`) ?

cc `@jyn514`

…i-obk

Custom MIR: Support binary and unary operations

Lower binary and unary operations directly to corresponding unchecked MIR
operations. Ultimately this might not be syntax we want, but it allows for
experimentation in the meantime.

r? ```@oli-obk``` ```@JakobDegen```

…didats-4, r=lcnr

Implement some more predicates in the new solver

Implement a few more goals. The subtype goal specifically is important, since it's required for this code to compile:

```
fn main() {
  let mut x = vec![];
  x.push(1i32);
}
```

(I think we emit a subtype goal here because of coercion).

Drive-by: Also implements `--compare-mode=next-solver` -- I've been using this locally a lot to find out what works and what doesn't. I'm also happy to split this out into another PR.

r? `@lcnr`

…n, r=m-ou-se

Add note about absolute paths to Path::join

The note already exists on `PathBuf::push`, but I think it is good to have it on `Path::join` as well since it can cause issues if you are not careful with your input.

… r=notriddle

Migrate scraped-examples top and bottom "borders" to CSS variables

r? `@notriddle`