Further Drupal 8.6.4 changes. Some core files were not committed before a commit...
[yaffs-website] / web / core / lib / Drupal / Core / Field / TypedData /
drwxr-xr-x   ..
-rw-r--r-- 2498 FieldItemDataDefinition.php
-rw-r--r-- 958 FieldItemDataDefinitionInterface.php