[Refactor] add SetDataSize

See tc39/proposal-set-methods#105

.eslintrc

@@ -9,6 +9,7 @@
 			"capIsNewExceptions": [
 				"RequireObjectCoercible",
 				"GetSetRecord",
+				"SetDataSize",
 				"ToBoolean",
 
 				// GetSetRecord

aos/SetDataSize.js

@@ -0,0 +1,8 @@
+'use strict';
+
+var tools = require('es-set/tools');
+var $setSize = tools.size;
+
+module.exports = function SetDataSize(setData) {
+	return $setSize(setData);
+};

implementation.js

@@ -6,6 +6,7 @@ var $Set = require('es-set/polyfill')();
 
 var Call = require('es-abstract/2023/Call');
 var GetSetRecord = require('./aos/GetSetRecord');
+var SetDataSize = require('./aos/SetDataSize');
 var ToBoolean = require('es-abstract/2023/ToBoolean');
 
 var isSet = require('is-set');
@@ -24,7 +25,7 @@ module.exports = function isSubsetOf(other) {
 
 	var otherRec = GetSetRecord(other); // step 3
 
-	var thisSize = $setSize(O); // step 4
+	var thisSize = SetDataSize(O); // step 4
 
 	if (thisSize > otherRec['[[Size]]']) {
 		return false; // step 5