fix and rakudo-unfudge combination() tests
fix and rakudo-unfudge combination() tests

niner/roast,dankogai/roast,bitrauser/roast,niner/roast,b2gills/roast,laben/roast,skids/roast,perl6/roast,zostay/roast,cygx/roast,cygx/roast,dogbert17/roast,skids/roast,zostay/roast,dankogai/roast,b2gills/roast,cygx/roast,laben/roast,zostay/roast,niner/roast,skids/roast,laben/roast,dankogai/roast,b2gills/roast,bitrauser/roast,dogbert17/roast