1 files changed, 20 insertions, 0 deletions
diff --git a/test/files/neg/t6963b.scala b/test/files/neg/t6963b.scala
new file mode 100644
index 0000000000..3cfa8f0dca
--- /dev/null
+++ b/test/files/neg/t6963b.scala
@@ -0,0 +1,20 @@
+object Test {
+  def f1(x: Any) = x.isInstanceOf[Seq[_]]
+  def f2(x: Any) = x match {
+    case _: Seq[_]  => true
+    case _          => false
+  }
+
+  def f3(x: Any) = x match {
+    case _: Array[_]  => true
+    case _            => false
+  }
+  
+  def f4(x: Any) = x.isInstanceOf[Traversable[_]]
+  
+  def f5(x1: Any, x2: Any, x3: AnyRef) = (x1, x2, x3) match {
+    case (Some(_: Seq[_]), Nil, _)        => 1
+    case (None, List(_: List[_], _), _)   => 2
+    case _                                => 3
+  }
+}