Overhauled sequence length logic in the pattern...

Overhauled sequence length logic in the pattern matcher. Removes
unnecessary boxing and a few varieties of wrongness.

Closes #3395, #3150, #2958, #2945, #2187. No review.

1 files changed, 16 insertions, 0 deletions

diff --git a/test/files/run/bug2958.scala b/test/files/run/bug2958.scala
new file mode 100644
index 0000000000..dcd24ecc36
--- /dev/null
+++ b/test/files/run/bug2958.scala
@@ -0,0 +1,16 @@
+object Test {
+  def f(args: Array[String]) = args match {
+    case Array("-p", prefix, from, to) =>
+      prefix + from + to
+
+    case Array(from, to) =>
+      from + to
+
+    case _ =>
+      "default"
+  }
+
+  def main(args: Array[String]) {
+    assert(f(Array("1", "2")) == "12")
+  }
+}
\ No newline at end of file