Add parens for nullish coalescing in tenary (#16391)
* add parens for nullish coalescing
fix #4873
* add function
* Update tests/format/js/nullish-coalescing/nullish_coalesing_operator.js
Co-authored-by: fisker Cheung <lionkay@gmail.com>
* update snapshot
* add changelog entry
* fix typo
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Co-authored-by: fisker Cheung <lionkay@gmail.com>