core-js@3.18.1 Has a destructive change

[chenyulun]

The specific performance
3.18.0: HTMLAllCollection.prototype.forEach // Function
3.18.1: HTMLAllCollection.prototype.forEach // undefined
packages/core-js/internals/dom-iterables.js

// iterable DOM collections
// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
module.exports = {
  CSSRuleList: 0,
  CSSStyleDeclaration: 0,
  CSSValueList: 0,
  ClientRectList: 0,
  DOMRectList: 0,
  DOMStringList: 0,
  DOMTokenList: 1,
  DataTransferItemList: 0,
  FileList: 0,
  HTMLAllCollection: 0,
  HTMLCollection: 0,
  HTMLFormElement: 0,
  HTMLSelectElement: 0,
  MediaList: 0,
  MimeTypeArray: 0,
  NamedNodeMap: 0,
  NodeList: 1,
  PaintRequestList: 0,
  Plugin: 0,
  PluginArray: 0,
  SVGLengthList: 0,
  SVGNumberList: 0,
  SVGPathSegList: 0,
  SVGPointList: 0,
  SVGStringList: 0,
  SVGTransformList: 0,
  SourceBufferList: 0,
  StyleSheetList: 0,
  TextTrackCueList: 0,
  TextTrackList: 0,
  TouchList: 0
};

packages/core-js/modules/web.dom-collections.for-each.js

var global = require('../internals/global');
var DOMIterables = require('../internals/dom-iterables');
var DOMTokenListPrototype = require('../internals/dom-token-list-prototype');
var forEach = require('../internals/array-for-each');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');

var handlePrototype = function (CollectionPrototype) {
  // some Chrome versions have non-configurable methods on DOMTokenList
  if (CollectionPrototype && CollectionPrototype.forEach !== forEach) try {
    createNonEnumerableProperty(CollectionPrototype, 'forEach', forEach);
  } catch (error) {
    CollectionPrototype.forEach = forEach;
  }
};

for (var COLLECTION_NAME in DOMIterables) {
+  if (DOMIterables[COLLECTION_NAME]) {
    handlePrototype(global[COLLECTION_NAME] && global[COLLECTION_NAME].prototype);
+  }
}

handlePrototype(DOMTokenListPrototype);

[zloirock]

This is a bugfix, it should not be here #987.