{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"//"}]}
            // If `&` patterns can match against mutable reference types (RFC 3627, Rule 5), we need
        if ref_pat_matches_mut_ref && pat_mutbl == Mutability::Not {
            // to prevent subpatterns from binding with `ref mut`. Subpatterns of a shared reference