public static string ToRuntimeWildcardOperator(IndexerWildcard wildcard)
 {
     return(wildcard switch
     {
         IndexerWildcard.All => RuntimeOpAll,
         IndexerWildcard.Any => RuntimeOpAny,
         _ => throw new ArgumentException("Unsupported wildcard.")
     });
 public IndexerWildcardExpression(IndexerWildcard wildcard)
 {
     Wildcard = wildcard;
 }