Reject leading unsafe in `cfg!(...)` and `--check-cfg` This PR reject leading unsafe in `cfg!(...)` and `--check-cfg`. Fixes (after-backport) https://github.com/rust-lang/rust/issues/131055 r? `@jieyouxu`
Reject leading unsafe in `cfg!(...)` and `--check-cfg` This PR reject leading unsafe in `cfg!(...)` and `--check-cfg`. Fixes (after-backport) https://github.com/rust-lang/rust/issues/131055 r? `@jieyouxu`