Auto merge of #9407 - KiChjang:radio-node-list, r=nox

Implement RadioNodeList

I also had to implement the NamedGetter for HTMLFormControlsCollection as well, since that's the only consumer of RadioNodeList and I wanted to see which wpt test passes.

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tests/wpt/metadata/html/dom/interfaces.html.ini

@@ -1359,9 +1359,6 @@
   [HTMLCollection interface: calling namedItem(DOMString) on document.all with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLFormControlsCollection interface: operation namedItem(DOMString)]
-    expected: FAIL
-
   [HTMLFormControlsCollection must be primary interface of document.createElement("form").elements]
     expected: FAIL
 
@@ -1389,21 +1386,6 @@
   [HTMLCollection interface: calling namedItem(DOMString) on document.createElement("form").elements with too few arguments must throw TypeError]
     expected: FAIL
 
-  [RadioNodeList interface: existence and properties of interface object]
-    expected: FAIL
-
-  [RadioNodeList interface object length]
-    expected: FAIL
-
-  [RadioNodeList interface: existence and properties of interface prototype object]
-    expected: FAIL
-
-  [RadioNodeList interface: existence and properties of interface prototype object's "constructor" property]
-    expected: FAIL
-
-  [RadioNodeList interface: attribute value]
-    expected: FAIL
-
   [HTMLOptionsCollection interface: existence and properties of interface object]
     expected: FAIL
 
@@ -8934,9 +8916,6 @@
   [HTMLAllCollection interface object name]
     expected: FAIL
 
-  [RadioNodeList interface object name]
-    expected: FAIL
-
   [HTMLOptionsCollection interface object name]
     expected: FAIL
 

tests/wpt/metadata/html/infrastructure/common-dom-interfaces/collections/htmlformcontrolscollection.html.ini

@@ -6,15 +6,9 @@
   [HTMLFormControlsCollection(name) must return the named item]
     expected: FAIL
 
-  [The namedItem(name) must return RadioNodeList]
-    expected: FAIL
-
   [Controls can be indexed by id or name attribute]
     expected: FAIL
 
-  [The namedItem(name) must return the items with id or name attribute]
-    expected: FAIL
-
   [The HTMLFormControlsCollection interface is used for collections of listed elements in form element]
     expected: FAIL
 

tests/wpt/metadata/html/infrastructure/common-dom-interfaces/collections/radionodelist.html.ini

@@ -1,17 +1,5 @@
 [radionodelist.html]
   type: testharness
-  [The value attribute should be empty if no element is checked]
-    expected: FAIL
-
-  [The RadioNodeList.value must be the first checked radio button's value]
-    expected: FAIL
-
-  [Check the RadioNodeList.value on getting]
-    expected: FAIL
-
-  [Check the RadioNodeList.value on setting]
-    expected: FAIL
-
   [Check the RadioNodeList.value on setting to 'on']
     expected: FAIL
 

tests/wpt/metadata/html/semantics/forms/the-form-element/form-elements-nameditem-01.html.ini

@@ -1,8 +1,5 @@
 [form-elements-nameditem-01.html]
   type: testharness
-  [RadioNodeList should exist]
-    expected: FAIL
-
   [elements collection should return elements or RadioNodeLists]
     expected: FAIL
 

tests/wpt/mozilla/tests/mozilla/interfaces.html

@@ -193,6 +193,7 @@ var interfaceNamesInGlobalScope = [
   "PerformanceTiming",
   "ProcessingInstruction",
   "ProgressEvent",
+  "RadioNodeList",
   "Range",
   "Screen",
   "Storage",