From 5e07e6780afd854e7a5547d67e8d2a98d9853247 Mon Sep 17 00:00:00 2001
From: Nicolas Stucki <nicolas.stucki@gmail.com>
Date: Mon, 30 Oct 2023 09:13:14 +0100
Subject: [PATCH] Add regression test

Closes #18789
---
 tests/pos/18789.scala | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 tests/pos/18789.scala

diff --git a/tests/pos/18789.scala b/tests/pos/18789.scala
new file mode 100644
index 000000000000..28ddfd56305d
--- /dev/null
+++ b/tests/pos/18789.scala
@@ -0,0 +1,4 @@
+sealed trait TypeId:
+  case class Foo() extends TypeId
+
+object TypeId {}