docs: @Override
      public List<AbstractExpression> bindingToIndexedExpression(AbstractExpression expr) {
          if (m_originalValue == null || ! m_originalValue.equals(expr)) {
              return null;
          }
          // This parameter's value was matched, so return this as one bound parameter.
          List<AbstractExpression> result = new ArrayList<AbstractExpression>();
          result.add(this);
          return result;
      }