Very few of the L2 Core tests are "HTML-compatible". Of the 11 that are one, createDocumentType04, causes Safari to crash (logged as http://bugzilla.opendarwin.org/show_bug.cgi?id=3653) and hc_nodenormalizedocumentfragment2 failed. hc_nodenormalizedocumentfragment2 adds an empty text node to a document fragment and then normalizes the document fragment expecting the elimination of the empty text node. Apparently, I never got around to making functional self-hosted versions of the L2 HTML tests and they are not present in the snapshots. The build script can produce them, but they are not currently functional. I'll try to debug them and see what I can do to make them available.