{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"hir::ExprKind::Index(ref"}]}
            hir::ExprKind::Index(ref l, ref r, _) | hir::ExprKind::Binary(_, ref l, ref r) => {
                let r_succ = self.propagate_through_expr(r, succ);