fix test about Unassigned and ID_Continue
fix test about Unassigned and ID_Continue

\x[9FC4] is in both ID_Continue and ID_Start. In fact, all ID_Start are in ID_Continue.
\x[27EC] is an assigned char now (MATHEMATICAL LEFT WHITE TORTOISE SHELL BRACKET), so choosed something else.

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