The library path is needed when the toolchain has been configured with
`[rust] rpath = false`. Otherwise, building the reference book will get
an error when it tries to run rustdoc, like:

    rustdoc: error while loading shared libraries: librustc_driver-2ec457c3b8826b72.so

It currently doesn't handle the three-char tokens `>>=` and `<<=`
correctly. These can be broken twice, resulting in three individual
tokens. This is a latent bug that currently doesn't cause any problems,
but does cause problems for rust-lang#124141, because that PR increases the usage
of lazy token streams.

Implements the ACP rust-lang/libs-team#393.

…shtriplett

std: implement the `random` feature (alternative version)

Implements the ACP rust-lang/libs-team#393.

This PR is an alternative version of rust-lang#129120 that replaces `getentropy` with `CCRandomGenerateBytes` (on macOS) and `arc4random_buf` (other BSDs), since that function is not suited for generating large amounts of data and should only be used to seed other CPRNGs. `CCRandomGenerateBytes`/`arc4random_buf` on the other hand is (on modern platforms) just as secure and uses its own, very strong CPRNG (ChaCha20 on the BSDs, AES on macOS) periodically seeded with `getentropy`.

llvm: replace some deprecated functions

`LLVMMDStringInContext` and `LLVMMDNodeInContext` are deprecated, replace them with `LLVMMDStringInContext2` and `LLVMMDNodeInContext2`.
Also replace `Value` with `Metadata` in some function signatures for better consistency.

…k-Simulacrum

bootstrap: Set the dylib path when building books with rustdoc

The library path is needed when the toolchain has been configured with
`[rust] rpath = false`. Otherwise, building the reference book will get
an error when it tries to run rustdoc, like:

    rustdoc: error while loading shared libraries: librustc_driver-2ec457c3b8826b72.so

…r=petrochenkov

Fix `break_last_token`.

It currently doesn't handle the three-char tokens `>>=` and `<<=` correctly. These can be broken twice, resulting in three individual tokens. This is a latent bug that currently doesn't cause any problems, but does cause problems for rust-lang#124141, because that PR increases the usage of lazy token streams.

r? `@petrochenkov`

Remove x86_64-fuchsia and aarch64-fuchsia target aliases

Closes rust-lang#106649.

…e, r=jieyouxu

Add more test cases for block-no-opening-brace

Also add FIXME's for rust-lang#80931 & rust-lang#78168

…ompiler-errors

Add rustfmt 2024 reformatting to git blame ignore

rust-lang#130724 essentially reformatted the world, so we should add it to the git blame ignore list.

Tested with `git blame compiler/rustc_abi/src/lib.rs -L1137,1146`. I first thought that I have to ignore the merge commit, but it seems like the actual commit that did the reformatting should be ignored instead.

r? `@compiler-errors`

readd @tgross35 and @joboet to the review rotation

We're both (nearly) back from vacation.

CC `@tgross35`