0163768e0d
This ensures that `MaybeUninit<T>` has the same ABI as `T` when passed through an `extern "C"` function. Fixes https://github.com/rust-lang/rust/issues/115509
rustc_target
contains some very low-level details that are
specific to different compilation targets and so forth.
For more information about how rustc works, see the rustc dev guide.