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kotlinlang

<https://youtrack.jetbrains.com/issue/KT-82061/stdlib-js-MutableList-iterators-dont-guard-for-ConcurrentModificationException>
Implementation of MutableList in js stdlib doesn’t guard for <https://youtrack.jetbrains.com/issue/KT-82061/stdlib-js-MutableList-iterators-dont-guard-for-ConcurrentModificationException|ConcurrentModificationException> unlike on other targets and even set/map in js stdlib

Thanks for bringing an attention to the issue. The problem was known for a while, but was not fixed yet.