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/html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/constructor.html.ini

@@ -0,0 +1,4 @@
+[constructor.html]
+  [TextTrackCue and VTTCue are separate interfaces]
+    expected: FAIL
+

tests/wpt/meta-legacy-layout/html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/endTime.html.ini

@@ -0,0 +1,8 @@
+[endTime.html]
+  expected: TIMEOUT
+  [TextTrackCue.endTime, script-created cue]
+    expected: FAIL
+
+  [TextTrackCue.endTime, parsed cue]
+    expected: TIMEOUT
+

tests/wpt/meta-legacy-layout/html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/id.html.ini

@@ -0,0 +1,8 @@
+[id.html]
+  expected: TIMEOUT
+  [TextTrackCue.id, script-created cue]
+    expected: FAIL
+
+  [TextTrackCue.id, parsed cue]
+    expected: TIMEOUT
+

tests/wpt/meta-legacy-layout/html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/onenter.html.ini

@@ -0,0 +1,8 @@
+[onenter.html]
+  expected: ERROR
+  [TextTrackCue.addEventListener/removeEventListener]
+    expected: FAIL
+
+  [TextTrackCue.onenter]
+    expected: FAIL
+

tests/wpt/meta-legacy-layout/html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/onexit.html.ini

@@ -0,0 +1,8 @@
+[onexit.html]
+  expected: ERROR
+  [TextTrackCue.addEventListener/removeEventListener]
+    expected: FAIL
+
+  [TextTrackCue.onexit]
+    expected: FAIL
+

tests/wpt/meta-legacy-layout/html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/pauseOnExit.html.ini

@@ -0,0 +1,8 @@
+[pauseOnExit.html]
+  expected: TIMEOUT
+  [TextTrackCue.pauseOnExit, parsed cue]
+    expected: TIMEOUT
+
+  [TextTrackCue.pauseOnExit, script-created cue]
+    expected: FAIL
+

tests/wpt/meta-legacy-layout/html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/startTime.html.ini

@@ -0,0 +1,8 @@
+[startTime.html]
+  expected: TIMEOUT
+  [TextTrackCue.startTime, parsed cue]
+    expected: TIMEOUT
+
+  [TextTrackCue.startTime, script-created cue]
+    expected: FAIL
+

tests/wpt/meta-legacy-layout/html/semantics/embedded-content/media-elements/interfaces/TextTrackCue/track.html.ini

@@ -0,0 +1,8 @@
+[track.html]
+  expected: TIMEOUT
+  [TextTrackCue.track, script-created cue]
+    expected: FAIL
+
+  [TextTrackCue.track, parsed cue]
+    expected: TIMEOUT
+