Run same tests for layout-2020 and layout-2013 (#30092)

Most tests were only being run for layout-2013, not for layout-2020.
This wasn't great since layout-2020 is now the default.

So this patch unifies the lists of included tests for both layouts.
For layout-2013 this implies adding css/css-content/, css/css-logical/
and css/css-masking/clip/.
For layout-2020 this implies adding several additional css tests, and
also tests like dom/, js/, html/, etc.

tests/wpt/meta/html/editing/the-hidden-attribute/beforematch-element-fragment-navigation.html.ini

@@ -0,0 +1,24 @@
+[beforematch-element-fragment-navigation.html]
+  [Verifies that fragment navigation reveals hidden=until-found elements.]
+    expected: FAIL
+
+  [Verifies that fragment navigation reveals all parent hidden=until-found elements.]
+    expected: FAIL
+
+  [Verifies that the beforematch event is fired synchronously and bubbles after fragment navigation.]
+    expected: FAIL
+
+  [Verifies that when a beforematch event handler moves a matching element, we scroll to its final location.]
+    expected: FAIL
+
+  [Verifies that the beforematch event is fired on the right element when there are multiple hidden=until-found elements.]
+    expected: FAIL
+
+  [Verifies that no scrolling occurs when an element selected by the fragment identifier is detached by the beforematch event handler.]
+    expected: FAIL
+
+  [No scrolling should occur when the beforematch event handler sets the target element's style to display: none.]
+    expected: FAIL
+
+  [Scrolling should still occur when beforematch sets visiblity:hidden on the target element.]
+    expected: FAIL

tests/wpt/meta/html/editing/the-hidden-attribute/hidden-idl.html.ini

@@ -0,0 +1,15 @@
+[hidden-idl.html]
+  [div.hidden = "until-found"]
+    expected: FAIL
+
+  [div.hidden = "UNTIL-FOUND"]
+    expected: FAIL
+
+  [div.hidden = "UnTiL-FoUnD"]
+    expected: FAIL
+
+  [div.hidden = "untıl-found"]
+    expected: FAIL
+
+  [div.hidden = "untİl-found"]
+    expected: FAIL

tests/wpt/meta/html/editing/the-hidden-attribute/hidden-ua-stylesheet.html.ini

@@ -0,0 +1,21 @@
+[hidden-ua-stylesheet.html]
+  [div.removeAttribute('hidden')]
+    expected: FAIL
+
+  [div.setAttribute('hidden', '')]
+    expected: FAIL
+
+  [div.setAttribute('hidden', 'asdf')]
+    expected: FAIL
+
+  [div.setAttribute('hidden', 'until-found')]
+    expected: FAIL
+
+  [div.setAttribute('hidden', 'UNTIL-FOUND')]
+    expected: FAIL
+
+  [div.setAttribute('hidden', 'UnTiL-FoUnD')]
+    expected: FAIL
+
+  [div.setAttribute('hidden', '0')]
+    expected: FAIL