test: add regression test for `grind?` dropping `cases` params This PR adds a regression test for #13828: `grind?` suggestions used to omit `cases` parameters (e.g., `cases Bool`), producing suggestions that failed during replay. The issue was fixed by #14022. Closes #13828 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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