{"ast_node_type":"function","tokens":[{"end":77,"kind":"keyword","start":0,"text":"fn"}]}
    fn collect(ty: &'tcx hir::Ty<'tcx>, map: &'a mut LifetimeInfoMap<'tcx>) {
impl<'a, 'tcx> LifetimeInfoCollector<'a, 'tcx> {
        let mut this = Self { type_span: ty.span, referenced_type_span: None, map };