Better code for /$a/ where $a is typed as Str.
Better code for /$a/ where $a is typed as Str.

Text::CSV uses this pattern for building up its regex. LITERAL is a
load cheaper than INTERPOLATE since it doesn't have so many cases to
consider.

MasterDuke17/rakudo,skids/rakudo,raydiak/rakudo,skids/rakudo,tony-o/rakudo,cygx/rakudo,sjn/rakudo,nbrown/rakudo,dankogai/rakudo,jonathanstowe/rakudo,tbrowder/rakudo,b2gills/rakudo,zostay/rakudo,ungrim97/rakudo,sjn/rakudo,ab5tract/rakudo,usev6/rakudo,paultcochrane/rakudo,nbrown/rakudo,jonathanstowe/rakudo,LLFourn/rakudo,Gnouc/rakudo,salortiz/rakudo,cygx/rakudo,LLFourn/rakudo,ab5tract/rakudo,ugexe/rakudo,dankogai/rakudo,ab5tract/rakudo,rakudo/rakudo,LLFourn/rakudo,cognominal/rakudo,paultcochrane/rakudo,ungrim97/rakudo,nunorc/rakudo,Gnouc/rakudo,cognominal/rakudo,ugexe/rakudo,salortiz/rakudo,usev6/rakudo,b2gills/rakudo,salortiz/rakudo,softmoth/rakudo,lucasbuchala/rakudo,zostay/rakudo,labster/rakudo,paultcochrane/rakudo,rakudo/rakudo,sjn/rakudo,MasterDuke17/rakudo,sjn/rakudo,nunorc/rakudo,ab5tract/rakudo,nbrown/rakudo,MasterDuke17/rakudo,lucasbuchala/rakudo,zostay/rakudo,ugexe/rakudo,tony-o/rakudo,raydiak/rakudo,lucasbuchala/rakudo,nbrown/rakudo,labster/rakudo,tbrowder/rakudo,awwaiid/rakudo,nbrown/rakudo,MasterDuke17/rakudo,zostay/rakudo,lucasbuchala/rakudo,softmoth/rakudo,MasterDuke17/rakudo,awwaiid/rakudo,cognominal/rakudo,nunorc/rakudo,paultcochrane/rakudo,b2gills/rakudo,samcv/rakudo,ungrim97/rakudo,raydiak/rakudo,samcv/rakudo,softmoth/rakudo,rakudo/rakudo,ugexe/rakudo,Gnouc/rakudo,tony-o/rakudo,tbrowder/rakudo,labster/rakudo,b2gills/rakudo,Gnouc/rakudo,cygx/rakudo,MasterDuke17/rakudo,b2gills/rakudo,azawawi/rakudo,usev6/rakudo,Gnouc/rakudo,labster/rakudo,nbrown/rakudo,jonathanstowe/rakudo,usev6/rakudo,skids/rakudo,skids/rakudo,dankogai/rakudo,jonathanstowe/rakudo,ungrim97/rakudo,rakudo/rakudo,samcv/rakudo,awwaiid/rakudo,cygx/rakudo,tbrowder/rakudo,Gnouc/rakudo,usev6/rakudo,softmoth/rakudo,labster/rakudo,ugexe/rakudo,tbrowder/rakudo,dankogai/rakudo,raydiak/rakudo,jonathanstowe/rakudo,awwaiid/rakudo,tony-o/rakudo,tony-o/rakudo,LLFourn/rakudo,sjn/rakudo,nunorc/rakudo,dankogai/rakudo,tony-o/rakudo,lucasbuchala/rakudo,tbrowder/rakudo,awwaiid/rakudo,salortiz/rakudo,cognominal/rakudo,cygx/rakudo,salortiz/rakudo,azawawi/rakudo,azawawi/rakudo,azawawi/rakudo,ungrim97/rakudo,LLFourn/rakudo,azawawi/rakudo,samcv/rakudo,cognominal/rakudo,paultcochrane/rakudo,salortiz/rakudo,ab5tract/rakudo,softmoth/rakudo,samcv/rakudo,rakudo/rakudo,rakudo/rakudo,skids/rakudo,labster/rakudo