Fixes and closes #4535.

No review.

2 files changed, 33 insertions, 0 deletions

diff --git a/test/files/run/t4535.check b/test/files/run/t4535.check
new file mode 100644
index 0000000000..9d4ce0d535
--- /dev/null
+++ b/test/files/run/t4535.check
@@ -0,0 +1,3 @@
+ArrayStack(1, 2, 3)
+ArrayStack(1, 2, 3, 4, 5, 6)
+ArrayStack(6, 5, 4, 3, 2, 1)
\ No newline at end of file
diff --git a/test/files/run/t4535.scala b/test/files/run/t4535.scala
new file mode 100644
index 0000000000..91c13a28cd
--- /dev/null
+++ b/test/files/run/t4535.scala
@@ -0,0 +1,30 @@
+
+
+import collection._
+
+
+// #4535
+object Test {
+
+  def main(args: Array[String]) {
+    val as = new mutable.ArrayStack[Int]
+    as push 1
+    as push 2
+    as push 3
+    println(as.reverse)
+
+    as push 4
+    as push 5
+    as push 6
+    println(as.reverse)
+
+    println(as map { x => x })
+
+    for (i <- 0 until 100) {
+      as push i
+      assert(as == as.map(x => x))
+      assert(as == as.reverse.reverse)
+    }
+  }
+
+}