Dylan DPC 000e38d9cb

Rollup merge of #94175 - Urgau:check-cfg-improvements, r=petrochenkov ...

Improve `--check-cfg` implementation

This pull-request is a mix of improvements regarding the `--check-cfg` implementation:

- Simpler internal representation (usage of `Option` instead of separate bool)
- Add --check-cfg to the unstable book (based on the RFC)
- Improved diagnostics:
    * List possible values when the value is unexpected
    * Suggest if possible a name or value that is similar
- Add more tests (well known names, mix of combinations, ...)

r? ```@petrochenkov```

2022-02-24 21:42:13 +01:00

..

src

Rollup merge of #94175 - Urgau:check-cfg-improvements, r=petrochenkov

2022-02-24 21:42:13 +01:00

Cargo.toml

Migrate to 2021

2021-09-20 22:21:42 -04:00