* Turn normalize data into an autoloadable class and use the class name
as key instead of a partial file name with a base directory.
* This protected function is not aimed at re-use in extensions,
has no other usage known to Codesearch. Mark it internal,
and remove the compat introduced by 31283f34bf.
* Update the now ten-year-old documentation comments that described
this as "Temporary". The functionality and comment were introduced
in 2010 by Tim with r60599 (ad19c032b0).
Ref <https://bash.toolforge.org/search?p=0&q=temporary>.
* Replace the broken wikitech-l archive link with a working one,
and describe the thread for easier future reference.
Bug: T225756
Change-Id: I004da1f25c19e1095d0917349f2ba8461f9f0715
Depending on which namespace we want these classes to have after
T166010 they could either stay in includes/languages/ (plural) in
their own MediaWiki\Languages\-namespace dedicated to Language
subclasses, or they could go in into a subdirectory like
`includes/language/languages/` if we want to keep them in the same
top-level namespace as other Language classes and services, but in
a more nested namespace.
For now, I've made the smaller change and kept the Language subclasses
in their own directory directly under includes/, not nested further.
Bug: T225756
Change-Id: I01015424707b442853879fd50c97f00215e5c2fa
