{"ast_node_type":"variable","tokens":[{"end":78,"kind":"keyword","start":0,"text":"if"}]}
        if let hir::TyKind::Path(hir::QPath::Resolved(None, qpath)) = t.kind {
    fn visit_ty(&mut self, t: &'tcx hir::Ty<'tcx, AmbigArg>) -> Self::Result {
            if let Res::Def(DefKind::TyParam, def_id) = qpath.res