Function simd_debug_impl 

pub(crate) fn simd_debug_impl<Element: Debug>(
    f: &mut Formatter<'_>,
    type_name: &str,
    token: &dyn Debug,
    items: &[Element],
) -> Result

The actual Debug implementation for all SimdBase types. This only needs to be monomorphized once per element type, rather than once per vector type.