Added a missing test case for the previous commit.

No review.

1 files changed, 15 insertions, 0 deletions

diff --git a/test/files/pos/t4257.scala b/test/files/pos/t4257.scala
new file mode 100644
index 0000000000..39f04a0a0a
--- /dev/null
+++ b/test/files/pos/t4257.scala
@@ -0,0 +1,15 @@
+object Test {
+
+  class SA[@specialized(Int) A] {
+    def o[U](f: ((Int, A) => Any)) {}
+
+    def o[U](f: A => Any) {}
+  }
+
+  class X[@specialized(Int) B] {
+    def x(b: B) = {
+      new SA[B]().o((x: Any) => x)
+    }
+  }
+}
+