Method from

cranelift/entity/src/packed_option.rs:101–107

Convert `t` into a packed `Some(x)`.

(t: T)

impl<T: ReservedValue> From<T> for PackedOption<T> {
    /// Convert `t` into a packed `Some(x)`.
    fn from(t: T) -> Self {
        debug_assert!(
            !t.is_reserved_value(),
            "Can't make a PackedOption from the reserved value."
        );
        Self(t)
    }
}

impl<T: ReservedValue> From<Option<T>> for PackedOption<T> {