Enable more css tests (#31469)

* Enable more css tests

In particular, these directories are no longer skipped:
 - CSS1 (has no tests)
 - css-box (except margin-trim)
 - css-cascade
 - css-display (except run-in)
 - css-easing
 - css-env
 - css-lists
 - css-namespaces
 - css-overflow
 - css-pseudo
 - css-sizing (except aspect-ratio and contain-intrinsic-size)
 - css-syntax
 - reference
 - support (has no tests)

* Sort list properly

* Explicitly list skipped directories

* Do not skip css tests by default

* Add expectations

tests/wpt/meta/css/css-cascade/at-scope-parsing.html.ini

@@ -0,0 +1,126 @@
+[at-scope-parsing.html]
+  [@scope (.a) is valid]
+    expected: FAIL
+
+  [@scope (.a + .b) is valid]
+    expected: FAIL
+
+  [@scope (.a:hover) is valid]
+    expected: FAIL
+
+  [@scope (.a:hover, #b, div) is valid]
+    expected: FAIL
+
+  [@scope (:is(div, span)) is valid]
+    expected: FAIL
+
+  [@scope (.a) to (.b) is valid]
+    expected: FAIL
+
+  [@scope (.a)to (.b) is valid]
+    expected: FAIL
+
+  [@scope (.a) to (.b:hover, #c, div) is valid]
+    expected: FAIL
+
+  [@scope is valid]
+    expected: FAIL
+
+  [@scope to (.a) is valid]
+    expected: FAIL
+
+  [@scope (.a) to (&) is valid]
+    expected: FAIL
+
+  [@scope (.a) to (& > &) is valid]
+    expected: FAIL
+
+  [@scope (.a) to (> .b) is valid]
+    expected: FAIL
+
+  [@scope (.a) to (+ .b) is valid]
+    expected: FAIL
+
+  [@scope (.a) to (~ .b) is valid]
+    expected: FAIL
+
+  [@scope () is valid]
+    expected: FAIL
+
+  [@scope to () is valid]
+    expected: FAIL
+
+  [@scope () to () is valid]
+    expected: FAIL
+
+  [@scope (.c <> .d) is valid]
+    expected: FAIL
+
+  [@scope (.a, .c <> .d) is valid]
+    expected: FAIL
+
+  [@scope (.a <> .b, .c) is valid]
+    expected: FAIL
+
+  [@scope (div::before) is valid]
+    expected: FAIL
+
+  [@scope (div::after) is valid]
+    expected: FAIL
+
+  [@scope (slotted(div)) is valid]
+    expected: FAIL
+
+  [@scope (.a) to (div::before) is valid]
+    expected: FAIL
+
+  [@scope (> &) to (>>) is valid]
+    expected: FAIL
+
+  [@scope div is not valid]
+    expected: FAIL
+
+  [@scope (.a) unknown (.c) is not valid]
+    expected: FAIL
+
+  [@scope (.a) to unknown (.c) is not valid]
+    expected: FAIL
+
+  [@scope (.a) 1px (.c) is not valid]
+    expected: FAIL
+
+  [@scope (.a) to unknown(c) is not valid]
+    expected: FAIL
+
+  [@scope unknown(.a) is not valid]
+    expected: FAIL
+
+  [@scope 1px is not valid]
+    expected: FAIL
+
+  [@scope creep is not valid]
+    expected: FAIL
+
+  [@scope ))) is not valid]
+    expected: FAIL
+
+  [@scope ( is not valid]
+    expected: FAIL
+
+  [@scope ( {} is not valid]
+    expected: FAIL
+
+  [@scope to is not valid]
+    expected: FAIL
+
+  [@scope } is not valid]
+    expected: FAIL
+
+  [@scope (.a is not valid]
+    expected: FAIL
+
+  [@scope (.a to (.b) is not valid]
+    expected: FAIL
+
+  [@scope ( to (.b) is not valid]
+    expected: FAIL