{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
    // to represent the fact that we are storing *encoded* ids. When we decode
    // `SyntaxContextData`. We use a `u32` instead of a `SyntaxContext`
    // a `SyntaxContext`, a new id will be allocated from the global `HygieneData`,