autoload: Register modules as PSR-4 instead of PSR-0, without moving the classes. Allow for multiple paths per prefix. Register 3 directories per module namespace:
- ../lib/Drupal/(modulename)
- ../lib
This will be cleaned up later.
autoload: Register core namespaces as PSR-4
autoload: Use a loader with additional predictor character for PSR-4. Leave PSR-0 unchanged.
autoload: Register test namespaces as PSR-4.
plugin discovery: AnnotatedClassDiscovery with PSR-4 style directories.
plugin discovery: Allow annotation namespaces with multiple directories attached.
Register 2 PSR-4 directories for each module namespace:
- ../lib/Drupal/(modulename)
- ../lib
This will be cleaned up in a follow-up.
Let DrupalKernel::getModuleNamespacesPsr4() return three PSR-4 directories per directory.
Port discovery of test classes to PSR-4.
tmp: introduce getModuleNamespacesPsr4()