code: function genValidatorMap() {
    var groupName, group, name
    for (groupName in PROP_NAME_GROUPS) {
      group = PROP_NAME_GROUPS[groupName]
      for (name in group) {
        validatorMap[name] = group[name]
      }
    }
  }
docs: flatten `PROP_NAME_GROUPS` to `validatorMap`