Workaround another libxml bug, begin running all specced tests.

Author: Edward Z. Yang ext:(%22)

library/HTML5/TreeConstructer.php

@@ -3701,6 +3701,9 @@ public function insertForeignElement($token, $namespaceURI) {
                     // XSKETCHY: work around godawful libxml bug
                     if ($ns === self::NS_XLINK) {
                         $el->setAttribute('xlink:'.$attr, $kp['value']);
+                    } elseif ($ns === self::NS_HTML) {
+                        // Another godawful libxml bug
+                        $el->setAttribute($attr, $kp['value']);
                     } else {
                         $el->setAttributeNS($ns, $attr, $kp['value']);
                     }

tests/HTML5/TestData.php

@@ -25,7 +25,7 @@ static public function generateTestCases($base, $prefix, $type, $glob) {
             if ($type === 'tree-construction') {
                 // skip XFOREIGN tests for now
                 $num = (int) substr($name, 5);
-                if ($num >= 11) continue;
+                if ($num >= 99) continue;
             }
             $pfilename = var_export($filename, true);
             $code = "class $prefix$name extends $base { public \$filename = $pfilename; }";