Description

Last 4.2.0-beta release includes PR #27549.
Currently FrameworkExtension tries to build PropertyAccessor instance with APCu Adapter (FrameworkExtension which leads to PropertyAccessor), but maybe it is a good idea to use PhpFilesAdapter instead of APCu? IMO users without APCu can benefit from "cached version" of PropertyAccessor and PhpFilesAdapter on prod can be even faster than APCu, so for me there is no cons.
Of course i can provide PR, if you think that this change is reasonable.
WDYT?