{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"eval_stack:"}]}
        eval_stack: &mut SmallVec<[Ty<'tcx>; 1]>, // for cycle detection
        typing_env: TypingEnv<'tcx>,
        in_module: &impl Fn(DefId) -> Result<bool, E>,