fix: TSArrayType printer when element is a TSUnionType #1416
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When a
TSUnionTypehas anelementTypeofTSUnionTypethe brackets would only end up on the last member of the union (e.gnumber | string[]instead of(number | string)[]). Parsers seem to wrap theTSUnionTypein aTSParenthesizedTypewhich would get around this issue but in codemods and other scenarios where nodes are built by hand it could be easy to make this mistake.It's possible that this is just a bug in
ast-typesand aTSUnionTypeshould not be a validelementType.