Merge remote-tracking branch 'origin/master'

linwenling

2023-10-07 38edd817f503603d2b86703e95ecd115d2c789bd

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// we can't use just `it == null` since of `document.all` special case
// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot-aec
module.exports = function (it) {
  return it === null || it === undefined;
};