Fix failing neg/i16820 test on JDK < 15#16976

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smarter merged 1 commit intoscala:mainfrom

WojciechMazur:fix/nighlty-build-on-jdk8

Feb 20, 2023

Commits on Feb 20, 2023

Remove usage of JDK version dependent method from neg/i16820 test. `formatted` is a deprecated Scala extension method and a function with a the same was added to String in JDK15
WojciechMazur
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