Sync and remove [NotEnumerable] from toString as per Selection API …

…IDL Specification

https://bugs.webkit.org/show_bug.cgi?id=264991

Reviewed by Ryosuke Niwa.

This change is to align WebKit with Gecko / Firefox, Blink / Chromium and Web-Specification [1] by removing
[NoEnumerable] from 'toString' (stringifier).

[1] https://w3c.github.io/selection-api/#selection-interface

* Source/WebCore/page/DOMSelection.idl:
* LayoutTests/js/dom/toString-dontEnum.html: Rebaselined
* LayoutTests/js/dom/toString-dontEnum-expected.txt: Rebaselined

Canonical link: https://commits.webkit.org/270933@main

LayoutTests/js/dom/toString-dontEnum-expected.txt

@@ -1,6 +1,5 @@
 This tests that the toString() function does not enumerate.
 
-PASS: the toString function is not enumerable for Selection.
 PASS: the toString function is not enumerable for HTMLDivElement.
 PASS: the toString function is not enumerable for HTMLDocument.
 PASS: the toString function is not enumerable for Object.

LayoutTests/js/dom/toString-dontEnum.html

@@ -24,9 +24,6 @@
             if (window.testRunner)
                 testRunner.dumpAsText();
 
-            // DOM objects with custom toString() functions
-            test(window.getSelection(), "Selection");
-
             // Other DOM objects
             test(document.createElement('div'), "HTMLDivElement");
             test(document, "HTMLDocument");

Source/WebCore/page/DOMSelection.idl

@@ -27,7 +27,7 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-// https://www.w3.org/TR/selection-api/#idl-def-Selection
+// https://w3c.github.io/selection-api/#selection-interface
 [
     GenerateIsReachable=ReachableFromDOMWindow,
     InterfaceName=Selection,
@@ -67,7 +67,7 @@
     [CEReactions=Needed] undefined deleteFromDocument();
     boolean containsNode(Node node, optional boolean allowPartialContainment = false);
 
-    [NotEnumerable] DOMString toString();
+    DOMString toString();
 
     // Non-standard methods and attributes.