/// Returns whether two pointers are guaranteed to be inequal.
///
- /// At runtime this function behaves like `Some(self == other)`.
+ /// At runtime this function behaves like `Some(self != other)`.
/// However, in some contexts (e.g., compile-time evaluation),
/// it is not always possible to determine inequality of two pointers, so this function may
/// spuriously return `None` for pointers that later actually turn out to have its inequality known.