Fixed up the regression I slipped in with slice.

for pointing me toward the problem.  No review.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/files/run/patch-boundary.scala b/test/files/run/patch-boundary.scala
new file mode 100644
index 0000000000..ed1a0e9fc1
--- /dev/null
+++ b/test/files/run/patch-boundary.scala
@@ -0,0 +1,8 @@
+object Test {
+  def f = collection.mutable.ArrayBuffer(1, 2, 3, 4, 5, 6, 7, 8)
+  def g = f.patch(4, List(1, 2), 10)
+
+  def main(args: Array[String]): Unit = {
+    assert(g.size == 6)
+  }
+}