Took another of universal equality's victims to...

Took another of universal equality's victims to the hospital. Closes
#3348, no review.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/files/run/mapValues.scala b/test/files/run/mapValues.scala
new file mode 100644
index 0000000000..d3266bd18f
--- /dev/null
+++ b/test/files/run/mapValues.scala
@@ -0,0 +1,8 @@
+object Test {
+  val m = Map(1 -> 1, 2 -> 2)
+  val mv = (m mapValues identity) - 1
+
+  def main(args: Array[String]): Unit = {
+    assert(mv.size == 1)
+  }
+}