mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-04 19:28:29 +00:00

Implement RFC3695 Allow boolean literals as cfg predicates This PR implements https://github.com/rust-lang/rfcs/pull/3695: allow boolean literals as cfg predicates, i.e. `cfg(true)` and `cfg(false)`. r? `@nnethercote` *(or anyone with parser knowledge)* cc `@clubby789`