1 files changed, 20 insertions, 0 deletions
diff --git a/test/files/run/t3994.scala b/test/files/run/t3994.scala
new file mode 100644
index 0000000000..0ee1d9d966
--- /dev/null
+++ b/test/files/run/t3994.scala
@@ -0,0 +1,20 @@
+trait T {
+  trait Default { def foo = this }
+  object Default extends Default
+}
+
+class Crash { // if you change this to a `trait` it keeps failing, though if it is an `object` it compiles just fine!
+  class Element
+
+  /* declare this as a class, and the crash goes away */
+  trait ElementOrdering extends Ordering[Element] {
+    def compare(a: Element, b: Element): Int = 0
+  }
+
+  implicit object ElementOrdering extends ElementOrdering
+}
+
+object Test extends App {
+  (new T {}).Default
+  (new Crash).ElementOrdering
+}