{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"err.span_label(self.token.span,"}]}
            err.span_label(self.token.span, "expected `where` or `{` after union name");
            let mut err = self.dcx().struct_span_err(self.token.span, msg);
            return Err(err);