Issue #3328457 by xjm, dimitriskr: Replace most substr($a, $i) where $i is negative with str_ends_with()

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2002134 by fago, yched, amateescu, effulgentsia: Move TypedData metadata introspection from data objects to definition objects.