Glyphs are in the reverse order in this case, so the character
positions for the wanted range must be treated that way. This improves
e.g. the second attachment from tdf#112989. Unfortunately it's
not that significant, as arabic glyphs are often unsafe to break at.
Change-Id: I836ebff6282c420462c5cd5906d30d2e9431f218
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133494
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>
2b418c16cd