Replace DateFormatter with DateFormatterInterface in DI

Hello everyone, I have conducted tests with the module without applying the patch published by kksandr, and I cannot identify the issue associated with this case. After applying the patch, I also don't see any errors. However, I consider it important to determine how to reproduce the issue in order to know if the problem has been resolved.

@DavidMV97, you need to define a decorator for the date.formatter service, after which the module breaks.
For example:

services:
  date.formatter.decorator:
    class: Drupal\your_module\YourDecoratorDateFormatter
    decorates: 'date.formatter'
    decoration_priority: 50
    arguments: [ '@date.formatter.decorator.inner' ]

kksandr → closed merge request !34

Fixed in Diff should typehint DateFormatter interface rather than a specific implementation 🐛 Diff should typehint DateFormatter interface rather than a specific implementation Fixed