fix order of Array.fromAsync arguments validation

Author: zloirock

packages/core-js/modules/es.array.from-async.js

@@ -3,7 +3,6 @@
 var $ = require('../internals/export');
 var bind = require('../internals/function-bind-context');
 var uncurryThis = require('../internals/function-uncurry-this');
-var toObject = require('../internals/to-object');
 var isConstructor = require('../internals/is-constructor');
 var getAsyncIterator = require('../internals/get-async-iterator');
 var getIterator = require('../internals/get-iterator');
@@ -48,7 +47,7 @@ var INCORRECT_CONSTRUCTURING = !nativeFromAsync || fails(function () {
 // `Array.fromAsync` method
 // https://tc39.es/ecma262/#sec-array.fromasync
 $({ target: 'Array', stat: true, forced: INCORRECT_CONSTRUCTURING }, {
-  fromAsync: function fromAsync(asyncItems /* , mapfn = undefined, thisArg = undefined */) {
+  fromAsync: function fromAsync(items /* , mapfn = undefined, thisArg = undefined */) {
     var C = this;
     var argumentsLength = arguments.length;
     var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
@@ -57,15 +56,14 @@ $({ target: 'Array', stat: true, forced: INCORRECT_CONSTRUCTURING }, {
     // @dependency: es.promise.catch
     // @dependency: es.promise.finally
     return new (getBuiltIn('Promise'))(function (resolve) {
-      var O = toObject(asyncItems);
       if (mapfn !== undefined) mapfn = bind(mapfn, thisArg);
-      var usingAsyncIterator = getMethod(O, ASYNC_ITERATOR);
+      var usingAsyncIterator = getMethod(items, ASYNC_ITERATOR);
       // @dependency: es.string.iterator
-      var usingSyncIterator = usingAsyncIterator ? undefined : getIteratorMethod(O) || safeArrayIterator;
+      var usingSyncIterator = usingAsyncIterator ? undefined : getIteratorMethod(items) || safeArrayIterator;
       var A = isConstructor(C) ? new C() : [];
       var iterator = usingAsyncIterator
-        ? getAsyncIterator(O, usingAsyncIterator)
-        : new AsyncFromSyncIterator(getIteratorDirect(getIterator(O, usingSyncIterator)));
+        ? getAsyncIterator(items, usingAsyncIterator)
+        : new AsyncFromSyncIterator(getIteratorDirect(getIterator(items, usingSyncIterator)));
       resolve(toArray(iterator, mapfn, A));
     });
   },