Tracking Issue for `const_vec_string_slice` about rust HOT 1 OPEN

struct Foo(Cow<'static, [u32]>);

impl Foo {
    // Initialize with heap-allocated data at runtime.
    fn heap(data: Vec<u32>) -> Self {
        Foo(Cow::Owned(data))
    }

    // Initialize with static data at compile-time.
    const fn static(data: &'static [u32]) -> Self {
        Foo(Cow::Borrowed(data))
    }

    // Access the data, possibly at compile-time, possibly at runtime.
    const fn data(&self) -> &[u32] {
        match self.0 {
            Cow::Borrowed(slice) => slice,
            Cow::Owned(vec) => vec.as_slice(),
        }
    }
}