Three incompatibilities with scalac.

Using Scala 2.11.8 and dotty at bcfa3be8cfe2be.

cc/ #1457

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/pending/hkt/hkt.scala b/tests/pending/hkt/hkt.scala
new file mode 100644
index 000000000..34858cd95
--- /dev/null
+++ b/tests/pending/hkt/hkt.scala
@@ -0,0 +1,15 @@
+import scala.language.higherKinds
+// Minimal reproduction for:
+// scala.collection.mutable.ArrayStack.empty[Int]
+
+abstract class Super[C[_]] {
+  def empty[T]: C[T] = ???
+}
+
+class Child[T]
+
+object Child extends Super[Child] {
+  def empty: Child[Nothing] = new Child()
+
+  Child.empty[Int]
+}