…ann)This PR was submitted for the master branch but it was merged into the 2.7 branch instead (closes#7243).Discussion----------Removes duplicated Deprecated and adds an example.Removes the duplicate "Deprecated" after `@deprecated` annotation as was asked in my PRsymfony/symfony#20735. Also adds a randomly selected example that shows how the abstract `XXX` should look like and an edge case of `trigger_error()` when deprecating a whole class.Commits-------a2c04e7 Deletes duplicate "Deprecated" and adds a more explicit example.

* 2.7:  Use PHP 5.5's ::class notation  [#7243] minor tweak  Deletes duplicate "Deprecated" and adds a more explicit example.

* 2.8:  [#7220] some minor tweaks  Use PHP 5.5's ::class notation  [#7243] minor tweak  Deletes duplicate "Deprecated" and adds a more explicit example.  Accepted Suggestions  Update 'query_builder' option  Accepted suggestions in the guard documentation  Accepted suggestions in the guard documentation  Accepted suggestions in the guard documentation  Update guard_authentication.rst  Use PHP 5.5's ::class notation

* 3.1:  [#7220] some minor tweaks  Added "How to Use a Custom Version Strategy for Assets"  Use PHP 5.5's ::class notation  [#7243] minor tweak  Deletes duplicate "Deprecated" and adds a more explicit example.  Accepted Suggestions  Update 'query_builder' option  Accepted suggestions in the guard documentation  Accepted suggestions in the guard documentation  Accepted suggestions in the guard documentation  Update guard_authentication.rst  Use PHP 5.5's ::class notation

* 3.2: (22 commits)  add missing config formats  [#7224] fix indentation  [#7220] some minor tweaks  [#7196] add versionadded directive  Explained how to improve the readability of long numeric literals  Fix typo in workflow usage code lock  Added "How to Use a Custom Version Strategy for Assets"  Use PHP 5.5's ::class notation  Update state-machines.rst  [PHPUnitBridge] Fix copy/paste error  [PHPUnitBridge] Fix copy/paste error  [#7243] minor tweak  Deletes duplicate "Deprecated" and adds a more explicit example.  Accepted Suggestions  Update 'query_builder' option  Mentioned %env(...)% variables in Best Practices book  Accepted suggestions in the guard documentation  Accepted suggestions in the guard documentation  Accepted suggestions in the guard documentation  Update guard_authentication.rst  ...