[src/core/Cool-str.pm] changed to 'my class'
[src/core/Cool-str.pm] changed to 'my class'

Used to be a regular lexical variable. Suggestion by jnthn++.
Also changed the name of a variable for greater consistency.

MasterDuke17/rakudo,LLFourn/rakudo,cygx/rakudo,lucasbuchala/rakudo,lucasbuchala/rakudo,b2gills/rakudo,azawawi/rakudo,Leont/rakudo,rakudo/rakudo,rakudo/rakudo,laben/rakudo,cygx/rakudo,ugexe/rakudo,ugexe/rakudo,cognominal/rakudo,zhuomingliang/rakudo,cygx/rakudo,sjn/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,teodozjan/rakudo,labster/rakudo,tony-o/deb-rakudodaily,salortiz/rakudo,dankogai/rakudo,b2gills/rakudo,nunorc/rakudo,azawawi/rakudo,cygx/rakudo,lucasbuchala/rakudo,nbrown/rakudo,Gnouc/rakudo,dwarring/rakudo,ungrim97/rakudo,tbrowder/rakudo,LLFourn/rakudo,pmurias/rakudo,Gnouc/rakudo,raydiak/rakudo,jonathanstowe/rakudo,retupmoca/rakudo,MasterDuke17/rakudo,labster/rakudo,paultcochrane/rakudo,sergot/rakudo,zostay/rakudo,rakudo/rakudo,jonathanstowe/rakudo,cygx/rakudo,zhuomingliang/rakudo,pmurias/rakudo,tony-o/rakudo,samcv/rakudo,skids/rakudo,Gnouc/rakudo,tbrowder/rakudo,tony-o/rakudo,laben/rakudo,zhuomingliang/rakudo,paultcochrane/rakudo,tony-o/deb-rakudodaily,pmurias/rakudo,skids/rakudo,usev6/rakudo,labster/rakudo,ab5tract/rakudo,ab5tract/rakudo,LLFourn/rakudo,rakudo/rakudo,niner/rakudo,nunorc/rakudo,samcv/rakudo,b2gills/rakudo,dankogai/rakudo,skids/rakudo,niner/rakudo,samcv/rakudo,jonathanstowe/rakudo,awwaiid/rakudo,awwaiid/rakudo,tony-o/deb-rakudodaily,ab5tract/rakudo,sergot/rakudo,nbrown/rakudo,lucasbuchala/rakudo,nbrown/rakudo,tbrowder/rakudo,tony-o/deb-rakudodaily,niner/rakudo,paultcochrane/rakudo,sjn/rakudo,salortiz/rakudo,ab5tract/rakudo,paultcochrane/rakudo,nunorc/rakudo,tony-o/rakudo,raydiak/rakudo,softmoth/rakudo,cognominal/rakudo,paultcochrane/rakudo,MasterDuke17/rakudo,nbrown/rakudo,b2gills/rakudo,rjbs/rakudo,ungrim97/rakudo,nbrown/rakudo,retupmoca/rakudo,sjn/rakudo,sjn/rakudo,softmoth/rakudo,nunorc/rakudo,salortiz/rakudo,salortiz/rakudo,ugexe/rakudo,dankogai/rakudo,Gnouc/rakudo,Gnouc/rakudo,laben/rakudo,softmoth/rakudo,niner/rakudo,samcv/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,nbrown/rakudo,awwaiid/rakudo,teodozjan/rakudo,zostay/rakudo,rakudo/rakudo,cognominal/rakudo,rakudo/rakudo,salortiz/rakudo,ugexe/rakudo,dankogai/rakudo,cognominal/rakudo,jonathanstowe/rakudo,tony-o/rakudo,usev6/rakudo,ungrim97/rakudo,awwaiid/rakudo,dankogai/rakudo,dwarring/rakudo,tony-o/deb-rakudodaily,skids/rakudo,sergot/rakudo,lucasbuchala/rakudo,b2gills/rakudo,Gnouc/rakudo,usev6/rakudo,tony-o/rakudo,zostay/rakudo,skids/rakudo,dwarring/rakudo,tbrowder/rakudo,labster/rakudo,tony-o/deb-rakudodaily,softmoth/rakudo,Leont/rakudo,cognominal/rakudo,labster/rakudo,ab5tract/rakudo,rjbs/rakudo,tony-o/deb-rakudodaily,awwaiid/rakudo,ungrim97/rakudo,salortiz/rakudo,Leont/rakudo,MasterDuke17/rakudo,LLFourn/rakudo,Leont/rakudo,usev6/rakudo,azawawi/rakudo,tony-o/rakudo,rjbs/rakudo,zostay/rakudo,LLFourn/rakudo,jonathanstowe/rakudo,labster/rakudo,usev6/rakudo,samcv/rakudo,ungrim97/rakudo,laben/rakudo,zhuomingliang/rakudo,raydiak/rakudo,retupmoca/rakudo,ugexe/rakudo,softmoth/rakudo,raydiak/rakudo,retupmoca/rakudo,sergot/rakudo,teodozjan/rakudo,azawawi/rakudo,dwarring/rakudo,pmurias/rakudo,teodozjan/rakudo,sjn/rakudo,azawawi/rakudo