{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"//"}]}
    // ref bindings are be implicit after #42640 (default match binding modes). See issue #44848.
    // FIXME(tschottdorf): this is problematic as the HIR is being scraped, but
    pub fn contains_explicit_ref_binding(&self) -> Option<hir::Mutability> {