Enable various selector tests

Recent upgrades to our selector engine have allowed us to pass more web platform tests for selectors.

Closes #2204 and closes #1832 by enabling tests that verify them as fixed.

test/web-platform-tests/to-run.yaml

@@ -157,7 +157,7 @@ Node-insertBefore.html: [fail, Unknown]
 Node-isConnected.html: [fail, Last two tests with <iframe> are failing]
 Node-isEqualNode-xhtml.xhtml: [timeout, Unknown]
 Node-replaceChild.html: [fail, Unknown]
-ParentNode-querySelector-All-xht.xht: [fail, Unknown]
+ParentNode-querySelector-All-xht.xht: [fail, CDATA inside script tags not handled]
 ProcessingInstruction-escapes-1.xhtml: [fail, Unknown]
 ProcessingInstruction-literal-1.xhtml: [fail, Unknown]
 Text-constructor.html: [fail, Unknown]
@@ -719,6 +719,24 @@ template-element/template-content-hierarcy.html: [fail, probably a combination o
 
 ---
 
+DIR: html/semantics/selectors
+
+pseudo-classes/checked-type-change.html: [fail, CSS computed style computation]
+pseudo-classes/focus-autofocus.html: [fail, Unknown]
+pseudo-classes/focus.html: [fail, Unknown]
+pseudo-classes/indeterminate-radio.html: [fail, CSS computed style computation]
+pseudo-classes/indeterminate-type-change.html: [fail, CSS computed style computation]
+pseudo-classes/inrange-outofrange-type-change.html: [fail, CSS computed style computation]
+pseudo-classes/inrange-outofrange.html: [fail, Unknown]
+pseudo-classes/link.html: [fail, Bad test, https://github.com/web-platform-tests/wpt/issues/11231]
+pseudo-classes/placeholder-shown-type-change.html: [fail, CSS computed style computation]
+pseudo-classes/readwrite-readonly-type-change.html: [fail, CSS computed style computation]
+pseudo-classes/readwrite-readonly.html: [fail, Unknown]
+pseudo-classes/required-optional-hidden.html: [fail, CSS computed style computation]
+pseudo-classes/valid-invalid.html: [fail, Unknown]
+
+---
+
 DIR: html/semantics/tabular-data
 
 processing-model-1/col-span-limits.html: [fail, depends on a working offsetWidth]