{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"//"}]}
            // a lot of care around intrinsics. For an issue to happen here, it would require a
            // unlikely. Also: all users of `simd_shuffle` are on unstable and already need to take
            // macro expanding to a `simd_shuffle` call without wrapping the constant argument in a