…Info (alanpoulain)This PR was squashed before being merged into the 4.3 branch (closes#31452).Discussion----------[FrameworkBundle] Add cache configuration for PropertyInfo| Q             | A| ------------- | ---| Branch?       | 4.3| Bug fix?      | yes| New feature?  | no| BC breaks?    | no| Deprecations? || Tests pass?   | yes| Fixed tickets | n/a| License       | MIT| Doc PR        | n/aThe PropertyInfoExtractor was not cached by default but the class to do it was surprisingly here, unused.I've added the configuration to enable it by default when it's not the development environment.I haven't added the warmup part because there are too much arguments for the methods (class, property, context).It will be a big boost for the performance! For this code:```php$book = $this->serializer->deserialize('{"id":3,"reviews":[{"id": 7, "body": "This book is fantastic!", "rating": 9, "letter": "A", "publicationDate": "2019"}],"isbn":"978-0-5533-9243-2","title":"Fool\'s Assassin","description":"A famous saga","author":"Robin Hobb","publicationDate":"2014"}', Book::class, 'json');$this->serializer->serialize($book, 'json');```We obtain this:![image](https://user-images.githubusercontent.com/10920253/57487994-2874d000-72b2-11e9-92a2-28b14a038194.png)The Blackfire comparison is here:https://blackfire.io/profiles/compare/2c746d26-320a-4aab-80ef-7276c2e92b96/graphCommits-------17f6225 [FrameworkBundle] Add cache configuration for PropertyInfo