Fix #4147: Add test case

18ce5d2 fixed it.
scala · May 17, 2019 · 4c7ca9a · 4c7ca9a
1 parent 8332964
commit 4c7ca9a
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/tests/pos/i4147.scala b/tests/pos/i4147.scala
@@ -0,0 +1,10 @@
+trait Higher[F[_]]
+trait Super[A]
+trait Sub[A] extends Super[A]
+
+object Test {
+  implicit def higherSub: Higher[Sub] = ???
+  implicit def deriv[F[_]](implicit bla: Higher[F]): F[String] = ???
+
+  val x: Super[String] = deriv
+}