[Pharo 9.0] Build #452: cleanup #asClassVariable on String + small cleanups

There is a new Pharo build available!
 
The status of the build #452 was: FAILURE.

The Pull Request #6760 was integrated: "cleanup #asClassVariable on String + small cleanups"
Pull request url: https://github.com/pharo-project/pharo/pull/6760

Issue Url: https://github.com/pharo-project/pharo/issues/cleanupAsClassVariable
Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%20and%20branch%20Pipeline/job/Pharo9.0/452/