Update Patched Fix memoffset allows reading uninitialized memory

[imhunterand]

memoffset allows attempt of reading data from address 0 with arbitrary type. This behavior is an undefined behavior because address 0 to std::mem::size_of may not have valid bit-pattern with T. Old implementation dereferences uninitialized memory obtained from std::mem::align_of. Older implementation prior to it allows using uninitialized data obtained from std::mem::uninitialized with arbitrary type then compute offset by taking the address of field-projection. This may also result in an undefined behavior for "father" that includes (directly or transitively) type that does not allow to be uninitialized.

        // of the field check we did above.
        #[allow(unused_unsafe)] // for when the macro is used in an unsafe block
        unsafe {
            _memoffset__raw_const!((*($base as *const $parent)).$field)
        }
/// `raw_const!`, or just ref-then-cast when that is not available.
#[cfg(feature = "unstable_raw")]
#[macro_export]
#[doc(hidden)]
macro_rules! _memoffset__raw_const {
    ($path:expr) => {{
        $crate::ptr::raw_const!($path)
    }};
}
#[cfg(not(feature = "unstable_raw"))]
#[macro_export]
#[doc(hidden)]
macro_rules! _memoffset__raw_const {
    ($path:expr) => {{
        // This is UB because we create an intermediate reference to uninitialized memory.
        // Nothing we can do about that without `raw_const!` though.
        &$path as *const _
    }};
}

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