fix `Buf.new ~ (Any)` and similar
fix `Buf.new ~ (Any)` and similar

Using string operations like concat on a Buf (utf8,Blob8,...) and something that is not
a Buf:D failed by eating all your memory. Now we convert the buffer types to strings when
we know how, and fail otherwise.
This is meant to fix RT #122600 and RT #122827.

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