Merge "Track debug key changes in libcore/" am: 462331f4 am: 79f93feb

        // Add /data tz data set using the DistroVersion class (which libcore cannot use).

        // This update mechanism will be removed after the time zone APEX is launched so this

        // untidiness will disappear with it.

        String debugKeyPrefix = "core_library.timezone.data_";

        String debugKeyPrefix = "core_library.timezone.source.data_";

        String versionFileName = TimeZoneDataFiles.getDataTimeZoneFile(

                TimeZoneDistro.DISTRO_VERSION_FILE_NAME);

        addDistroVersionDebugInfo(versionFileName, debugKeyPrefix, coreLibraryDebugInfo);