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/css/css-align/self-alignment/parse-align-self-004.html.ini

@@ -0,0 +1,84 @@
+[parse-align-self-004.html]
+  [Checking invalid combination - align-self: legacy]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: space-around]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: left]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: safe right]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: auto safe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: auto left]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: normal unsafe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: normal stretch]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: baseline normal]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: baseline center]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: first baseline center]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: last baseline center]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: baseline last]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: baseline first]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: stretch unsafe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: stretch right]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: unsafe unsafe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: unsafe safe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: center start]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: unsafe stretch]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: safe stretch]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: baseline safe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: unsafe baseline]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: unsafe safe left]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: unsafe left safe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: left safe unsafe safe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: start safe]
+    expected: FAIL
+
+  [Checking invalid combination - align-self: safe]
+    expected: FAIL