Rename metadata directories

This renames:
 - `tests/wpt/metadata` → `tests/wpt/meta-legacy-layout`
 - `tests/wpt/metadata-layout-2020` → `tests/wpt/meta`
 - `tests/wpt/mozilla/meta` → `tests/wpt/mozilla/meta-legacy-layout`
 - `tests/wpt/mozilla/meta-layout-2020` → `tests/wpt/mozilla/meta`

tests/wpt/meta-legacy-layout/domparsing/DOMParser-parseFromString-xml-parsererror.html.ini

@@ -0,0 +1,55 @@
+[DOMParser-parseFromString-xml-parsererror.html]
+  [DOMParser: <parsererror> element added on error, <span ="noattr">10</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, 15<span]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span x:test="testing">1</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span>5]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span data-test=testing>14</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span novalue>9</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span><em>4</span></em>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span xmlns:p1 xmlns:p2="urn:x-test:test"/>17]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span ::="test">11</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span>7< /span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <8:test xmlns:8="urn:x-test:test">16</8:test>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span xmlns:="urn:x-test:test">12</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, < span>2</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span :test="testing">3</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span xmlns:xmlns="">13</span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, <span>8</ span>]
+    expected: FAIL
+
+  [DOMParser: <parsererror> element added on error, 6</span>]
+    expected: FAIL
+
+  [image/svg+xml is preserved in the error document]
+    expected: FAIL
+