{"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"hir_args:"}]}
        hir_args: &'hir hir::GenericArgs<'hir>,
        needle_fr: RegionVid,
        search_stack: &mut Vec<(Ty<'tcx>, &'hir hir::Ty<'hir>)>,