Merge remote-tracking branch 'origin/master'

jiangping

2025-04-27 41d9c70dfc6dbe060eaaf5bfc153885be8140c76

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'use strict';
// TODO: remove from `core-js@4`
var $ = require('../internals/export');
var upsert = require('../internals/map-upsert');
 
// `Map.prototype.upsert` method (replaced by `Map.prototype.emplace`)
// https://github.com/thumbsupep/proposal-upsert
$({ target: 'Map', proto: true, real: true, forced: true }, {
  upsert: upsert
});