... so that the left-to-right and top-to-bottom orders match.
Without this change, the reading order of annotations does
not satisfy the Priniple of Minimum Astonishment (at least
for scripts with left-right and top-bottom transitivity; it's
unclear whether Hebrew, Japanese, Chinese, or Arabic readers
will feel good about this change -- among others).

Change-Id: I05f6705d77cb3c8181deba92ab56ff31a12bc77c