All "double underscore" behavior switches should actually begin and end
with either a double underscore or a double U+FF3F (a fullwidth
underscore used in Japanese). Parsoid's tokenizer will not match a
localized behavior switch which does not start with double underscore.
In this patch localized aliases are added which start/end with double
underscore, and a few erroneous localizations were corrected which
had leading spaces or zero-width spaces. In addition, pages which
use a localized behavior switch which does not start/end with double
underscore are added to a tracking category for manual fix up.
In a future release (I8dd522d605c2b9e5310d169d7c51bcf424089497),
aliases which do not start/end with double underscore will be removed.
Bug: T407289
Change-Id: I458e3c981c07394ab81259fadb3d68a0399e7953
(cherry picked from commit 37772271cd6099327fb57f7c3139206be1ad72c6)
504079744b