The goal is to keep the actual default values for settings in the same
place as the setting is declared, and applied using the regular means
for loading the settings -- not in a separate piece of code that needs
to be loaded through some entirely different mechanism.
SetupDynamicConfig.php now contains a few categories of things:
* Post-processing of configuration settings, where already-set settings
are altered. This could be moved to MainConfigSchema too as a separate
set of methods.
* Processing of old aliases of settings (blacklist, slave) that are not
registered as settings anymore and therefore are not available to
MainConfigSchema. This could perhaps be moved to LocalSettings
processing somehow?
* Setting $wgUseEnotif, which is also not registered as a setting.
Easiest would be just to declare it as a setting and have it set
unconditionally.
* Setting the actual timezone to $wgLocaltimezone. This is not related
to configuration and should just be in Setup.php.
Bug: T305093
Change-Id: Ia5c23b52dbbfcb3d07ffcf5d3b7f2d7befba2a26