Backport: Fix isInstanceOf[Array[?]] returning true on non-Array#12108

Merged

nicolasstucki merged 1 commit intoscala:release-3.0.0from

dotty-staging:backport-fix-isInstanceOf-array

Apr 16, 2021

Commits on Apr 15, 2021

Fix isInstanceOf[Array[?]] returning true on non-Array
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