Optimize double-quoted string literals in regexes.
Optimize double-quoted string literals in regexes.

Those can just emit a literal node, not go through !LITERAL.

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