280a1da2a0
Avoid closing invalid handles Documentation for [`HandleOrInvalid`] has this note: > If holds a handle other than `INVALID_HANDLE_VALUE`, it will close the handle on drop. Documentation for [`HandleOrNull`] has this note: > If this holds a non-null handle, it will close the handle on drop. Currently, both will call `CloseHandle` on their invalid handles as a result of using `OwnedHandle` internally, contradicting the above paragraphs. This PR adds destructors that match the documentation. ```@rustbot``` label A-io O-windows T-libs [`HandleOrInvalid`]: https://doc.rust-lang.org/std/os/windows/io/struct.HandleOrInvalid.html [`HandleOrNull`]: https://doc.rust-lang.org/std/os/windows/io/struct.HandleOrNull.html