{"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"rustc_middle::middle::lib_features::FeatureStability,"}]}
    rustc_middle::middle::lib_features::FeatureStability,
    rustc_middle::middle::exported_symbols::SymbolExportInfo,
    rustc_middle::middle::resolve_bound_vars::ObjectLifetimeDefault,