{"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"UnimplementedBuiltinMacro"}]}
    UnimplementedBuiltinMacro { ast: AstId<ast::Macro> },
    UnresolvedMacroCall { ast: MacroCallKind, path: ModPath },
    InvalidDeriveTarget { ast: AstId<ast::Item>, id: usize },