Make unscopable objects writable and enumerable (#37119)

Testing: Covered by existing web platform tests
Fixes: https://github.com/servo/servo/issues/37118

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

components/script_bindings/interface.rs

@@ -18,9 +18,9 @@ use js::jsapi::{
     JS_AtomizeAndPinString, JS_GetFunctionObject, JS_GetProperty, JS_IterateCompartments,
     JS_NewFunction, JS_NewGlobalObject, JS_NewObject, JS_NewPlainObject, JS_NewStringCopyN,
     JS_SetReservedSlot, JS_WrapObject, JSAutoRealm, JSClass, JSClassOps, JSContext,
-    JSFUN_CONSTRUCTOR, JSFunctionSpec, JSObject, JSPROP_PERMANENT, JSPROP_READONLY,
+    JSFUN_CONSTRUCTOR, JSFunctionSpec, JSObject, JSPROP_ENUMERATE, JSPROP_PERMANENT,
-    JSPROP_RESOLVING, JSPropertySpec, JSString, JSTracer, ObjectOps, OnNewGlobalHookOption,
+    JSPROP_READONLY, JSPROP_RESOLVING, JSPropertySpec, JSString, JSTracer, ObjectOps,
-    SymbolCode, TrueHandleValue, Value, jsid,
+    OnNewGlobalHookOption, SymbolCode, TrueHandleValue, Value, jsid,
 };
 use js::jsval::{JSVal, NullValue, PrivateValue};
 use js::rust::wrappers::{
@@ -481,7 +481,7 @@ fn create_unscopable_object(cx: SafeJSContext, names: &[&CStr], mut rval: Mutabl
                 rval.handle(),
                 name.as_ptr(),
                 HandleValue::from_raw(TrueHandleValue),
-                JSPROP_READONLY as u32,
+                JSPROP_ENUMERATE as u32,
             ));
         }
     }

tests/wpt/meta/dom/idlharness.window.js.ini

@@ -1,10 +1,4 @@
 [idlharness.window.html?exclude=Node]
-  [Element interface: operation replaceWith((Node or DOMString)...)]
-    expected: FAIL
-
-  [Document interface: operation prepend((Node or DOMString)...)]
-    expected: FAIL
-
   [AbortSignal must be primary interface of new AbortController().signal]
     expected: FAIL
 
@@ -35,54 +29,30 @@
   [AbortController interface: operation abort()]
     expected: FAIL
 
-  [Element interface: operation prepend((Node or DOMString)...)]
-    expected: FAIL
-
   [AbortController interface: attribute signal]
     expected: FAIL
 
-  [CharacterData interface: operation before((Node or DOMString)...)]
-    expected: FAIL
-
   [AbortSignal interface: attribute aborted]
     expected: FAIL
 
-  [Element interface: operation after((Node or DOMString)...)]
-    expected: FAIL
-
   [CharacterData interface: existence and properties of interface prototype object's @@unscopables property]
     expected: FAIL
 
-  [CharacterData interface: operation remove()]
-    expected: FAIL
-
   [AbortController interface: new AbortController() must inherit property "signal" with the proper type]
     expected: FAIL
 
   [AbortController interface: new AbortController() must inherit property "abort()" with the proper type]
     expected: FAIL
 
-  [Element interface: attribute slot]
-    expected: FAIL
-
   [DocumentType interface: existence and properties of interface prototype object's @@unscopables property]
     expected: FAIL
 
-  [CharacterData interface: operation replaceWith((Node or DOMString)...)]
-    expected: FAIL
-
-  [DocumentType interface: operation replaceWith((Node or DOMString)...)]
-    expected: FAIL
-
   [EventTarget interface: calling dispatchEvent(Event) on new AbortController().signal with too few arguments must throw TypeError]
     expected: FAIL
 
   [DocumentFragment interface: existence and properties of interface prototype object's @@unscopables property]
     expected: FAIL
 
-  [DocumentType interface: operation before((Node or DOMString)...)]
-    expected: FAIL
-
   [AbortSignal interface: new AbortController().signal must inherit property "aborted" with the proper type]
     expected: FAIL
 
@@ -104,51 +74,15 @@
   [AbortSignal interface: existence and properties of interface prototype object]
     expected: FAIL
 
-  [Element interface: operation remove()]
-    expected: FAIL
-
-  [DocumentFragment interface: operation replaceChildren((Node or DOMString)...)]
-    expected: FAIL
-
   [NodeFilter interface: existence and properties of interface object]
     expected: FAIL
 
   [Stringification of new AbortController().signal]
     expected: FAIL
 
-  [CharacterData interface: operation after((Node or DOMString)...)]
-    expected: FAIL
-
-  [Element interface: operation replaceChildren((Node or DOMString)...)]
-    expected: FAIL
-
-  [DocumentFragment interface: operation prepend((Node or DOMString)...)]
-    expected: FAIL
-
-  [Document interface: operation replaceChildren((Node or DOMString)...)]
-    expected: FAIL
-
-  [Document interface: operation append((Node or DOMString)...)]
-    expected: FAIL
-
-  [DocumentType interface: operation remove()]
-    expected: FAIL
-
-  [DocumentType interface: operation after((Node or DOMString)...)]
-    expected: FAIL
-
   [Element interface: existence and properties of interface prototype object's @@unscopables property]
     expected: FAIL
 
-  [DocumentFragment interface: operation append((Node or DOMString)...)]
-    expected: FAIL
-
-  [Element interface: operation append((Node or DOMString)...)]
-    expected: FAIL
-
-  [Element interface: operation before((Node or DOMString)...)]
-    expected: FAIL
-
   [XPathNSResolver interface: document.createNSResolver(document.body) must inherit property "lookupNamespaceURI(DOMString?)" with the proper type]
     expected: FAIL
 
@@ -454,6 +388,3 @@
 
   [Element interface: element must inherit property "customElementRegistry" with the proper type]
     expected: FAIL
-
-
-[idlharness.window.html?include=Node]