Added regression test for #2147.

2 files changed, 10 insertions, 0 deletions

diff --git a/test/files/run/t2147.check b/test/files/run/t2147.check
new file mode 100644
index 0000000000..47e320610e
--- /dev/null
+++ b/test/files/run/t2147.check
@@ -0,0 +1,2 @@
+11
+11
diff --git a/test/files/run/t2147.scala b/test/files/run/t2147.scala
new file mode 100644
index 0000000000..185e617d80
--- /dev/null
+++ b/test/files/run/t2147.scala
@@ -0,0 +1,8 @@
+object Test extends Application {
+  val s: Seq[Int] = Stream.from(1)
+  val res0 = s.map(a => 2).head
+  val res1 = Stream.from(1).flatMap(a => List(1)).head
+
+  println((for{a <- Stream.from(1); b <- 1 to 5; if a > 10} yield a).head)
+  println((for{a <- Stream.from(1); b <- 1 to a; if a > 10} yield a).head)
+}