Throw in a private constructor, just to make sure that works

odersky · odersky · commit 4ba1cf6a326a · 2019-02-01T13:16:08.000+01:00
diff --git a/tests/pos/i5827.scala b/tests/pos/i5827.scala
@@ -1 +1,3 @@
-case class Foo protected(a: Int)
+case class Foo protected(a: Int)
+
+case class Bar private(a: Int)
