icu#11451 bidi, the gift that keeps on giving

Change-Id: I3bd37f8468c95a29ab3385dbc3ae825b76d8d3df
(cherry picked from commit bfb9eb550c4facb9aa6346a8d19f015cf5182668)
(cherry picked from commit 915153b2e14dd75a6c90f5f4b1ac01b7f47bafdb)