Test case closes SI-4124.

This looks like a job for... virtpatmat!

Author: retronym

test/files/run/t4124.check

@@ -0,0 +1,4 @@
+hi
+hi
+bye
+bye

test/files/run/t4124.scala

@@ -0,0 +1,24 @@
+import xml.Node
+
+object Test extends App {
+  val body: Node = <elem>hi</elem>	
+  println ((body: AnyRef, "foo") match {
+    case (node: Node, "bar")        => "bye"
+    case (ser: Serializable, "foo") => "hi"
+  })
+
+  println ((body, "foo") match {
+    case (node: Node, "bar")        => "bye"
+    case (ser: Serializable, "foo") => "hi"
+  })
+
+  println ((body: AnyRef, "foo") match {
+    case (node: Node, "foo")        => "bye"
+    case (ser: Serializable, "foo") => "hi"
+  })
+
+  println ((body: AnyRef, "foo") match {
+    case (node: Node, "foo")        => "bye"
+    case (ser: Serializable, "foo") => "hi"
+  })
+}