[t/spec] More s/isa/does/ in hash.t.
[t/spec] More s/isa/does/ in hash.t.

git-svn-id: 53605643c415f7495558be95614cf14171f1db78@29650 c213334d-75ef-0310-aa23-eaa082d1ae64

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