{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
        // (C1, C2, B1, B2, A1, A2). All the elements with the same span are
        // not change. On reversing the ordering (|a, b| but b.cmp(a)), you get
        // still ordered first to last, but all the elements with different