Correct private method call usage in parallel dispatch tests.
Correct private method call usage in parallel dispatch tests.

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