bug #21787 [PhpUnitBridge] do not register the test listener twice (xabbuh)
bug #21787 [PhpUnitBridge] do not register the test listener twice (xabbuh)

This PR was merged into the 2.8 branch.

Discussion
----------

[PhpUnitBridge] do not register the test listener twice

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

If the listener is already configured through the PHPUnit config, there
is no need to also enable it explicitly in the test runner.

Commits
-------

cee435fefd do not register the test listener twice

maidmaid/symfony,dmaicher/symfony,sgehrig/symfony,jderusse/symfony,ogizanagi/symfony,MatTheCat/symfony,tgalopin/symfony,Deamon/symfony,localheinz/symfony,aeoris/symfony,mnapoli/symfony,derrabus/symfony,d-ph/symfony,Strate/symfony,stof/symfony,mvhirsch/symfony,nasimnabavi/symfony,frankdejonge/symfony,ro0NL/symfony,romainneutron/symfony,derrabus/symfony,Amo/symfony,Nyholm/symfony,maidmaid/symfony,klandaika/symfony,ajgarlag/symfony,mweimerskirch/symfony,sstok/symfony,OndraM/symfony,apetitpa/symfony,mweimerskirch/symfony,michaelperrin/symfony,Deamon/symfony,nicolas-grekas/symfony,neemzy/symfony,SaschaDens/symfony,Nyholm/symfony,oleg-andreyev/symfony,deguif/symfony,stof/symfony,Koc/symfony,jzawadzki/symfony,ragboyjr/symfony,smatyas/symfony,docteurklein/symfony,Tobion/symfony,paradajozsef/symfony,mweimerskirch/symfony,garak/symfony,ragboyjr/symfony,MatTheCat/symfony,bendavies/symfony,mihai-stancu/symfony,okdana/symfony,dzuelke/symfony,klandaika/symfony,gnat42/symfony,Koc/symfony,gonzalovilaseca/symfony,michaelperrin/symfony,hason/symfony,kbond/symfony,Einenlum/symfony,symfony/symfony,aeoris/symfony,michaelperrin/symfony,paradajozsef/symfony,neemzy/symfony,gencer/symfony,Strate/symfony,curry684/symfony,OskarStark/symfony,Slamdunk/symfony,Amo/symfony,mihai-stancu/symfony,ogizanagi/symfony,mnapoli/symfony,mvhirsch/symfony,Simperfit/symfony,weaverryan/symfony,nicolas-grekas/symfony,tgalopin/symfony,mvhirsch/symfony,SaschaDens/symfony,dzuelke/symfony,Simperfit/symfony,jderusse/symfony,Deamon/symfony,frankdejonge/symfony,mpdude/symfony,phramz/symfony,josephdpurcell/symfony,iltar/symfony,damienalexandre/symfony,hhamon/symfony,andreia/symfony,sroze/symfony,hhamon/symfony,garak/symfony,backbone87/symfony,smatyas/symfony,voronkovich/symfony,josephdpurcell/symfony,jean-gui/symfony,e-moe/symfony,josephdpurcell/symfony,dzuelke/symfony,gonzalovilaseca/symfony,csarrazi/symfony,andreia/symfony,codeclimate-testing/symfony,Pierstoval/symfony,dunglas/symfony,Taluu/symfony,dunglas/symfony,mnapoli/symfony,Engerim/symfony,mweimerskirch/symfony,mihai-stancu/symfony,DavidGarciaCat/symfony,tgalopin/symfony,mihai-stancu/symfony,Pierstoval/symfony,dunglas/symfony,iltar/symfony,OskarStark/symfony,symfony/symfony,Slamdunk/symfony,zorn-v/symfony,MatTheCat/symfony,gencer/symfony,OndraM/symfony,xabbuh/symfony,fabpot/symfony,ajgarlag/symfony,dmaicher/symfony,Deamon/symfony,pamil/symfony,chalasr/symfony,aeoris/symfony,weaverryan/symfony,lyrixx/symfony,nasimnabavi/symfony,hason/symfony,Taluu/symfony,pierredup/symfony,Nyholm/symfony,xabbuh/symfony,pyrech/symfony,bendavies/symfony,symfony/symfony,alekitto/symfony,damienalexandre/symfony,pierredup/symfony,localheinz/symfony,WhiteEagle88/symfony,romaricdrigon/symfony,ro0NL/symfony,vincentaubert/symfony,zerkms/symfony,jakzal/symfony,jderusse/symfony,xabbuh/symfony,andrerom/symfony,zcodes/symfony,Einenlum/symfony,1ed/symfony,e-moe/symfony,hacfi/symfony,jvasseur/symfony,gimler/symfony,1ed/symfony,sstok/symfony,localheinz/symfony,tucksaun/symfony,jvasseur/symfony,fabpot/symfony,frankdejonge/symfony,c960657/symfony,garak/symfony,gimler/symfony,HeahDude/symfony,zerkms/symfony,sgehrig/symfony,dzuelke/symfony,jean-gui/symfony,mpdude/symfony,paradajozsef/symfony,zerkms/symfony,fabpot/symfony,Tobion/symfony,weaverryan/symfony,pyrech/symfony,Triiistan/symfony,alekitto/symfony,DavidGarciaCat/symfony,Strate/symfony,SaschaDens/symfony,Slamdunk/symfony,Engerim/symfony,ajgarlag/symfony,Einenlum/symfony,shieldo/symfony,arjenm/symfony,ragboyjr/symfony,Simperfit/symfony,oleg-andreyev/symfony,smatyas/symfony,lyrixx/symfony,codeclimate-testing/symfony,shieldo/symfony,csarrazi/symfony,jakzal/symfony,symfony/symfony,damienalexandre/symfony,Aliance/symfony,DavidGarciaCat/symfony,lepiaf/symfony,dmaicher/symfony,Taluu/symfony,HeahDude/symfony,nicolas-grekas/symfony,iltar/symfony,SaschaDens/symfony,d-ph/symfony,lstrojny/symfony,nasimnabavi/symfony,Simperfit/symfony,gnat42/symfony,Triiistan/symfony,ajgarlag/symfony,dzuelke/symfony,chalasr/symfony,teohhanhui/symfony,OndraM/symfony,hacfi/symfony,Einenlum/symfony,oleg-andreyev/symfony,yceruto/symfony,lstrojny/symfony,pierredup/symfony,hacfi/symfony,tgalopin/symfony,mnapoli/symfony,1ed/symfony,arjenm/symfony,csarrazi/symfony,stof/symfony,jean-gui/symfony,chalasr/symfony,WhiteEagle88/symfony,romainneutron/symfony,deguif/symfony,d-ph/symfony,Tobion/symfony,mihai-stancu/symfony,MatTheCat/symfony,gnat42/symfony,Koc/symfony,alekitto/symfony,zorn-v/symfony,deguif/symfony,codeclimate-testing/symfony,gnat42/symfony,bendavies/symfony,pamil/symfony,lepiaf/symfony,smatyas/symfony,damienalexandre/symfony,jvasseur/symfony,andrerom/symfony,zerkms/symfony,okdana/symfony,Amo/symfony,apetitpa/symfony,Slamdunk/symfony,mpdude/symfony,Amo/symfony,curry684/symfony,klandaika/symfony,ogizanagi/symfony,kbond/symfony,romainneutron/symfony,pyrech/symfony,c960657/symfony,hason/symfony,jakzal/symfony,dmaicher/symfony,gencer/symfony,paradajozsef/symfony,Pierstoval/symfony,d-ph/symfony,sstok/symfony,Triiistan/symfony,vincentaubert/symfony,frankdejonge/symfony,WhiteEagle88/symfony,ro0NL/symfony,nicolas-grekas/symfony,OskarStark/symfony,yceruto/symfony,sroze/symfony,sstok/symfony,joelwurtz/symfony,shieldo/symfony,iltar/symfony,gonzalovilaseca/symfony,voronkovich/symfony,Koc/symfony,jderusse/symfony,pierredup/symfony,pamil/symfony,teohhanhui/symfony,Tobion/symfony,andreia/symfony,yceruto/symfony,jzawadzki/symfony,kbond/symfony,sroze/symfony,teohhanhui/symfony,zorn-v/symfony,joelwurtz/symfony,klandaika/symfony,mpdude/symfony,zcodes/symfony,apetitpa/symfony,garak/symfony,okdana/symfony,neemzy/symfony,yceruto/symfony,voronkovich/symfony,chalasr/symfony,mvhirsch/symfony,andrerom/symfony,sstok/symfony,backbone87/symfony,Aliance/symfony,zcodes/symfony,Nyholm/symfony,mweimerskirch/symfony,tucksaun/symfony,pyrech/symfony,bendavies/symfony,jean-gui/symfony,Amo/symfony,jvasseur/symfony,Triiistan/symfony,hhamon/symfony,romainneutron/symfony,joelwurtz/symfony,lepiaf/symfony,ragboyjr/symfony,docteurklein/symfony,Deamon/symfony,zcodes/symfony,backbone87/symfony,ro0NL/symfony,joelwurtz/symfony,ogizanagi/symfony,derrabus/symfony,maidmaid/symfony,arjenm/symfony,HeahDude/symfony,romaricdrigon/symfony,Aliance/symfony,SaschaDens/symfony,fabpot/symfony,c960657/symfony,1ed/symfony,andrerom/symfony,tucksaun/symfony,lyrixx/symfony,jakzal/symfony,curry684/symfony,pamil/symfony,Engerim/symfony,c960657/symfony,docteurklein/symfony,phramz/symfony,klandaika/symfony,romaricdrigon/symfony,mvhirsch/symfony,localheinz/symfony,sroze/symfony,maidmaid/symfony,vincentaubert/symfony,Pierstoval/symfony,arjenm/symfony,Simperfit/symfony,OskarStark/symfony,lstrojny/symfony,gimler/symfony,shieldo/symfony,deguif/symfony,derrabus/symfony,stof/symfony,zorn-v/symfony,OndraM/symfony,sgehrig/symfony,nasimnabavi/symfony,e-moe/symfony,weaverryan/symfony,jzawadzki/symfony,docteurklein/symfony,phramz/symfony,kbond/symfony,vincentaubert/symfony,apetitpa/symfony,e-moe/symfony,lyrixx/symfony,teohhanhui/symfony,romaricdrigon/symfony,curry684/symfony,sgehrig/symfony,xabbuh/symfony,mnapoli/symfony,OndraM/symfony,michaelperrin/symfony,phramz/symfony,alekitto/symfony,HeahDude/symfony,oleg-andreyev/symfony,gimler/symfony,hhamon/symfony,smatyas/symfony,gonzalovilaseca/symfony,andreia/symfony,voronkovich/symfony,tucksaun/symfony,romainneutron/symfony,docteurklein/symfony,Taluu/symfony,codeclimate-testing/symfony,Triiistan/symfony