{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"self.dcx().emit_err(UnexpectedVertVertBeforeFunctionParam"}]}
            self.dcx().emit_err(UnexpectedVertVertBeforeFunctionParam { span: self.token.span });
        if let token::OrOr = self.token.kind {
            self.bump();