2 files changed, 20 insertions, 0 deletions
diff --git a/test/files/neg/bug845.check b/test/files/neg/bug845.check
new file mode 100644
index 0000000000..1750611993
--- /dev/null
+++ b/test/files/neg/bug845.check
@@ -0,0 +1,4 @@
+bug845.scala:4 error: only classes can have declared but undefined members
+  type Bar;
+       ^
+one error found
diff --git a/test/files/neg/bug845.scala b/test/files/neg/bug845.scala
new file mode 100644
index 0000000000..c8a2faa671
--- /dev/null
+++ b/test/files/neg/bug845.scala
@@ -0,0 +1,16 @@
+package test;
+
+object Test extends Application {
+  type Bar;
+  trait FooImpl;
+
+  trait Bob {
+    def bar : Bar with FooImpl;
+  }
+  def ifn[A,B](a : A)(f : A => B) =
+    if (a != null) f(a) else null;
+
+  val bob : Bob = null;
+  val bar = ifn(bob)(.bar);
+  assert(bar == null);
+}