Some of the entries in QLocale's single_character_data[] table are not, in fact, single characters; some RTL languages include bidi-markers in some of the fields, some locales use some denotation of "times ten to the power" as the exponent separator. There may be further complications, but let's just get some tests in that verify we are correctly serializing numbers in these locales. Include some parsing tests to show that we are indeed failing them. Task-number: QTBUG-107801 Change-Id: Iab9bfcea5fdcfcb991451920c9531e0e67d02913 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>