Revert "[ClassLoader] performance improvement: use str_replace instead of strtr"
Revert "[ClassLoader] performance improvement: use str_replace instead of strtr"

erasys/composer,naderman/composer,Seldaek/composer,balbuf/composer,composer/composer,Danack/composer,johnstevenson/composer,remicollet/composer,stof/composer,vdm-io/composer,fabpot/composer,curry684/composer,MoT3rror/composer,nicolas-grekas/composer,alcohol/composer,localheinz/composer,milleruk/composer,pierredup/composer,nevvermind/composer,SpacePossum/composer,gencer/composer,jreinke/composer,phansys/composer,floverdevel/composer,yaman-jain/composer,davidolrik/composer,javihgil/composer,andrerom/composer,slbmeh/composer,hirak/composer,Soullivaneuh/composer,till/composer,staabm/composer,JBleijenberg/composer,dzuelke/composer,fabiang/composer,stefangr/composer