{"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"self.dcx()"}]}
            self.dcx()
        if self.token == token::Colon && self.look_ahead(1, |&t| t != token::Colon) {
                .struct_span_err(self.token.span, "found single colon in a struct field type path")