{"ast_node_type":"variable","tokens":[{"end":65,"kind":"keyword","start":0,"text":"if"}]}
            if let Res::Def(DefKind::TyParam, def_id) = qpath.res
        if let hir::TyKind::Path(hir::QPath::Resolved(None, qpath)) = t.kind {
                && def_id == self.param_def_id