{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"//"}]}
            // the pattern isn't a never pattern (and thus an arm body is required)
            // this avoids the compiler saying that a `,` or `}` was expected even though
            let armless = (!is_fat_arrow && !is_almost_fat_arrow && pat.could_be_never_pattern())