This test shows how a console program's thread's language ID changes,
or not, when changing the console output code page (or indirectly
when starting on/connecting to a new console), depending on whether
or not the console is running on a CJK/on a non-CJK system, and the
selected code page is a CJK/a non-CJK one.
By that, the test indirectly tests the (non-exposed) consoles GetLangId
+ SetThreadLocale() calls being made under the hood.