def native_dev_languages
      @native_dev_languages ||= absolute_info_plist_paths.map do |path|
        begin
          read_plist_key(path, :CFBundleDevelopmentRegion)
        rescue ArgumentError => e
          warn e
        end
      end.compact.to_set
    end
def native_dev_languages
      @native_dev_languages ||= absolute_info_plist_paths.map do |path|
        begin
          read_plist_key(path, :CFBundleDevelopmentRegion)
        rescue ArgumentError => e
          warn e
        end
      end.compact.to_set
    end
Find the native development languages by trying to use the
 "Localization native development region" from Info.plist

 @return [Set<String>]