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/css/css-align/default-alignment/place-items-shorthand-006.html.ini

@@ -0,0 +1,108 @@
+[place-items-shorthand-006.html]
+  [Checking place-items: normal normal]
+    expected: FAIL
+
+  [Checking place-items: normal first baseline]
+    expected: FAIL
+
+  [Checking place-items: stretch stretch]
+    expected: FAIL
+
+  [Checking place-items: stretch first baseline]
+    expected: FAIL
+
+  [Checking place-items: start start]
+    expected: FAIL
+
+  [Checking place-items: start first baseline]
+    expected: FAIL
+
+  [Checking place-items: end end]
+    expected: FAIL
+
+  [Checking place-items: end first baseline]
+    expected: FAIL
+
+  [Checking place-items: self-start self-start]
+    expected: FAIL
+
+  [Checking place-items: self-start first baseline]
+    expected: FAIL
+
+  [Checking place-items: self-end self-end]
+    expected: FAIL
+
+  [Checking place-items: self-end first baseline]
+    expected: FAIL
+
+  [Checking place-items: center center]
+    expected: FAIL
+
+  [Checking place-items: center first baseline]
+    expected: FAIL
+
+  [Checking place-items: flex-start flex-start]
+    expected: FAIL
+
+  [Checking place-items: flex-start first baseline]
+    expected: FAIL
+
+  [Checking place-items: flex-end flex-end]
+    expected: FAIL
+
+  [Checking place-items: flex-end first baseline]
+    expected: FAIL
+
+  [Checking place-items: baseline baseline]
+    expected: FAIL
+
+  [Checking place-items: baseline first baseline]
+    expected: FAIL
+
+  [Checking place-items: first baseline left]
+    expected: FAIL
+
+  [Checking place-items: first baseline right]
+    expected: FAIL
+
+  [Checking place-items: first baseline normal]
+    expected: FAIL
+
+  [Checking place-items: first baseline stretch]
+    expected: FAIL
+
+  [Checking place-items: first baseline start]
+    expected: FAIL
+
+  [Checking place-items: first baseline end]
+    expected: FAIL
+
+  [Checking place-items: first baseline self-start]
+    expected: FAIL
+
+  [Checking place-items: first baseline self-end]
+    expected: FAIL
+
+  [Checking place-items: first baseline center]
+    expected: FAIL
+
+  [Checking place-items: first baseline flex-start]
+    expected: FAIL
+
+  [Checking place-items: first baseline flex-end]
+    expected: FAIL
+
+  [Checking place-items: first baseline baseline]
+    expected: FAIL
+
+  [Checking place-items: first baseline first baseline]
+    expected: FAIL
+
+  [Checking place-items: first baseline last baseline]
+    expected: FAIL
+
+  [Checking place-items: last baseline first baseline]
+    expected: FAIL
+
+  [Checking place-items: last baseline last baseline]
+    expected: FAIL