code: @SuppressWarnings("signature") // conversion routine
    public static @ClassGetName String fieldDescriptorToClassGetName(/*FieldDescriptor*/ String fd) {
      if (fd.startsWith("[")) {
        return fd.replace('/', '.');
      } else {
        return fieldDescriptorToBinaryName(fd);
      }
    }
docs: Convert from a FieldDescriptor to the format of {@link Class#getName()}.
  
  @param fd the class, in field descriptor format
  @return the class name, in Class.getName format