{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"//"}]}
        // also be interpreted as a path to e.g. a constant, variant, etc.
        // a sub pattern (no `@ $pat`) is syntactically ambiguous as it could
        let is_syntactic_ambiguity = !has_sub && ann == BindingMode::NONE;