Implements rust-lang#51908.

If you are using a hard-linked file as your config.toml, this change will affect the way other instances of the file is modified.
The original version would modify all other instances whereas the new version will leave others unchanged, reducing the ref count by one.

Signed-off-by: NODA, Kai <[email protected]>

This is a tricky operation to implement on Win32; see
https://ci.appveyor.com/project/nodakai/python-win-behavior

Signed-off-by: NODA, Kai <[email protected]>

The previous syntax was causing rustdoc to interpret them as links.

... and perform the same verification for #[proc_macro_attribute], currently
neither of these attributes take any arguments.

Closes rust-lang#52273

bootstrap: write texts to a .tmp file first for atomicity

If you are using a hard-linked file as your config.toml, this change will affect the way other instances of the file is modified.
The original version would modify all other instances whereas the new version will leave others unchanged, reducing the ref count by one.

…excrichton

impl Clone for Box<CStr>, Box<OsStr>, Box<Path>

Implements rust-lang#51908.

use proper footnote syntax for references

The previous syntax was causing rustdoc to interpret them as links.

Deny bare trait objects in `src/bootstrap`

Enforce `#![deny(bare_trait_objects)]` in `src/bootstrap`.

…tr, r=petrochenkov

rustc: Verify #[proc_macro] is only a word

... and perform the same verification for #[proc_macro_attribute], currently
neither of these attributes take any arguments.

Closes rust-lang#52273

Uncapitalize "If"

…ochenkov

Deny bare trait objects in src/librustc_resolve

Enforce `#![deny(bare_trait_objects)]` in `src/librustc_resolve`.

…enkov

Deny bare trait objects in src/libsyntax_ext

Enforce `#![deny(bare_trait_objects)]` in `src/libsyntax_ext`.

make reference to dirs crate clickable in terminals

Currently I have to copy-paste the link; with this change I can just click it right in my terminal window.