[t/spec] first real signature introspection tests
[t/spec] first real signature introspection tests

git-svn-id: 53605643c415f7495558be95614cf14171f1db78@28677 c213334d-75ef-0310-aa23-eaa082d1ae64

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