Stuart Cook
3c6a2bc0af
format safety doc of Rc/Arc::from_raw/from_raw_in The following APIs previously had safety notes, but they were not placed under a dedicated Safety section. This PR adds a Safety section for each API and moves the original safety descriptions there: - [`Rc::from_raw`](https://doc.rust-lang.org/nightly/alloc/rc/struct.Rc.html#method.from_raw) - [`Rc::from_raw_in`](https://doc.rust-lang.org/nightly/alloc/rc/struct.Rc.html#method.from_raw_in) - [`Arc::from_raw`](https://doc.rust-lang.org/nightly/alloc/sync/struct.Arc.html#method.from_raw) - [`Arc::from_raw_in`](https://doc.rust-lang.org/nightly/alloc/sync/struct.Arc.html#method.from_raw_in) Additionally, we updated the parameter requirements to clarify that the raw pointer may be returned not only from `into_raw`, but also from `into_raw_with_allocator`.
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