{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"///"}]}
    /// a nicer error message talking about the specific name that was found lacking a value.
    /// emit an error that a `name = value` pair was expected at this span. The symbol can be given for
    pub(crate) fn expected_name_value(&self, span: Span, name: Option<Symbol>) -> ErrorGuaranteed {