Assume
This was left as a TODO in #92268, and brings the trait more in line with what was defined in MCP411. `Assume::visibility` has been renamed to `Assume::safety`, as library safety is what's actually being assumed; visibility is just the mechanism by which it is currently checked (this may change). ref: https://github.com/rust-lang/compiler-team/issues/411 ref: https://github.com/rust-lang/rust/issues/99571
rustc_on_unimplemented
BikeshedIntrinsicFrom
ref: https://github.com/rust-lang/rust/pull/92268#discussion_r925266583
This initial implementation handles transmutations between types with specified layouts, except when references are involved. Co-authored-by: Igor null <m1el.2027@gmail.com>
