Revert "SI-5905 Clarify test case"

This reverts commit 78bd175afcc89878ca1c00cce69d0517909c6ff3.

See discussion:

  https://github.com/scala/scala/pull/3597#commitcomment-6270375
Merge pull request #3732 from retronym/revert/5905

Revert "SI-5905 Clarify test case"