2 files changed, 30 insertions, 0 deletions
diff --git a/test/files/neg/implicits.check b/test/files/neg/implicits.check
new file mode 100644
index 0000000000..d1bbd2b3f0
--- /dev/null
+++ b/test/files/neg/implicits.check
@@ -0,0 +1,8 @@
+implicits.scala:21 error: ambiguous implicit value:
+ most specific definition is: method pos2int in object Super of type (Pos)scala.Int
+ yet alternative definition   method any2plus in object Sub of type (scala.Any)Sub.Plus
+ is defined in a subclass.
+ Both definitions are possible conversion functions from Pos to ?{val +: ?}
+  f(p+1)
+    ^
+one error found
diff --git a/test/files/neg/implicits.scala b/test/files/neg/implicits.scala
new file mode 100755
index 0000000000..710ffc94fc
--- /dev/null
+++ b/test/files/neg/implicits.scala
@@ -0,0 +1,22 @@
+class Pos
+
+class Super
+
+object Super {
+  implicit def pos2int(p: Pos): int = 0
+}
+
+object Sub extends Super {
+  class Plus(x: Any) {
+    def +(y: String): String = x.toString + y
+  }
+  implicit def any2plus(x: Any): Plus = new Plus(x)
+}
+
+object Test {
+  import Super._
+  import Sub._
+  val p = new Pos
+  def f(x: int): int = x
+  f(p+1)
+}