1 files changed, 9 insertions, 0 deletions
diff --git a/tests/untried/neg/t6666e.scala b/tests/untried/neg/t6666e.scala
new file mode 100644
index 000000000..120a5878b
--- /dev/null
+++ b/tests/untried/neg/t6666e.scala
@@ -0,0 +1,9 @@
+
+import scala.collection.immutable.TreeMap
+import scala.math.Ordering
+
+
+class Crash(a: Any) {
+  def this() =
+    this(Nil.collect{case x =>})
+}