…_param

When the parser has to recover from malformed code in a pattern, do not
complain about missing fields.

A convenience method like fs::copy() should try to prevent pitfalls a
normal user doesn't think about.

In case of an empty umask, setting the file mode early prevents
temporarily world readable or even writeable files,
because the default mode is 0o666.

In case the target is a named pipe or special device node, setting the
file mode can lead to unwanted side effects, like setting permissons on
`/dev/stdout` or for root setting permissions on `/dev/null`.

copy_file_range() returns EINVAL, if the destination is a FIFO/pipe or
a device like "/dev/null", so fallback to io::copy, too.

Use `fcopyfile` on MacOS instead of `copyfile`.

Fixes: rust-lang#26933
Fixed: rust-lang#37885

Resolves rust-lang#55416

Resolves rust-lang#55546

Fix some AArch64 typos

cc @dlrobertson

…tor, r=eddyb

Refactor generic parameter encoder functions

Addresses rust-lang#58503 (comment).

r? @eddyb

fs::copy() unix: set file mode early

A convenience method like fs::copy() should try to prevent pitfalls a
normal user doesn't think about.

In case of an empty umask, setting the file mode early prevents
temporarily world readable or even writeable files,
because the default mode is 0o666.

In case the target is a named pipe or special device node, setting the
file mode can lead to unwanted side effects, like setting permissons on
`/dev/stdout` or for root setting permissions on `/dev/null`.

copy_file_range() returns EINVAL, if the destination is a FIFO/pipe or
a device like "/dev/null", so fallback to io::copy, too.

Fixes: rust-lang#26933
Fixed: rust-lang#37885

…Mark-Simulacrum,ollie27

Prevent cache issues on version updates

Fixes rust-lang#58827.

cc @rust-lang/infra

…davis

Do not complain about unmentioned fields in recovered patterns

When the parser has to recover from malformed code in a pattern, do not
complain about missing fields.

Fix rust-lang#59145.

Include llvm-ar with llvm-tools component

Adds the `llvm-ar` tool to the `llvm-tools` component. This is useful for [building and linking native code](https://doc.rust-lang.org/cargo/reference/build-scripts.html#case-study-building-some-native-code) in cargo build scripts without needing to use the platform specific `ar`. According to rust-lang#58663 it is also useful for WASM.

 `llvm-ar` is very small (~82KB), so it does not significantly increase the size of the `llvm-tools` component.

Fixes rust-lang#58663

HirIdify hir::ItemId

Version of rust-lang#59092.

r? @oli-obk

Remove the block on natvis for lld-link.

Since rust-lang#56642 bumped minimum LLVM version to 6.0.0, Rust should be able to honor or ignore Windows natvis support with lld-link.

It looks like  llvm-mirror/lld@9133ca57b was in LLVM 7.0, while llvm-mirror/lld@27b9c4285 made it into 6.0, at least if the release branches are anything to go by.

Fixes rust-lang#59383.

Use consistent phrasing for all macro summaries

None

…r-ranked-trait-bounds, r=Centril

Add documentation about `for` used as higher ranked trait bounds

Resolves rust-lang#55416

…scards, r=Centril

Document that `std::io::BufReader` discards contents on drop

Resolves rust-lang#55546

…ization, r=Centril

Fix link capitalization in documentation of std::io::BufWriter.