2 files changed, 10 insertions, 0 deletions
diff --git a/test/files/run/t2030.check b/test/files/run/t2030.check
new file mode 100644
index 0000000000..5923569f4f
--- /dev/null
+++ b/test/files/run/t2030.check
@@ -0,0 +1,2 @@
+true
+class scala.collection.immutable.TreeSet
+\ No newline at end of file
diff --git a/test/files/run/t2030.scala b/test/files/run/t2030.scala
new file mode 100644
index 0000000000..251ae2c622
--- /dev/null
+++ b/test/files/run/t2030.scala
@@ -0,0 +1,8 @@
+import scala.collection.immutable._
+
+object Test extends Application {
+  val res0 = TreeSet(1, 2, 3, 4, 5, 6)
+  val res1 = res0.map(x => x)
+  println(res0.toList == res1.toList)
+  println(res1.getClass)
+}