Fix HTMLFormControlsCollection.namedItem

Author: j-f1

Sources/DOM/Customized.swift

@@ -0,0 +1,16 @@
+//
+//  Customized.swift
+//  
+//
+//  Created by Jed Fox on 2023-01-28.
+//
+
+import Foundation
+
+extension HTMLFormControlsCollection {
+    // removes `override` since the superclass returns a more constrained type `Element`
+    @inlinable public func namedItem(name: String) -> Element_or_RadioNodeList? {
+        let this = jsObject
+        return this[Strings.namedItem].function!(this: this, arguments: [_toJSValue(name)]).fromJSValue()!
+    }
+}

Sources/DOM/Generated.swift

@@ -6973,10 +6973,7 @@ public class HTMLFormControlsCollection: HTMLCollection {
         jsObject[key].fromJSValue()
     }
 
-    @inlinable override public func namedItem(name: String) -> Element_or_RadioNodeList? {
-        let this = jsObject
-        return this[Strings.namedItem].function!(this: this, arguments: [_toJSValue(name)]).fromJSValue()!
-    }
+    // XXX: member 'namedItem' is ignored
 }
 
 public class HTMLFormElement: HTMLElement {

Sources/WebIDLToSwift/IDLBuilder.swift

@@ -72,6 +72,7 @@ enum IDLBuilder {
                 // manually implemented
                 "HTMLCanvasElement": ["getContext"],
                 "OffscreenCanvas": ["getContext"],
+                "HTMLFormControlsCollection": ["namedItem"]
             ],
             types: merged.types
         )