Refine refOfDef top handle repeated parameters

refOfDef is used in desugaring case classes, specifically the definition of an apply method.
Here it is necessary to pass a vararg argument (x: _*) if the case class parameter is repeated.
This functionality is now added to `refOfDef`. I verified that the other uses of `refOfDef` are
compatible with this change.

Fixes #768.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/run/i768.scala b/tests/run/i768.scala
new file mode 100644
index 000000000..0697b476b
--- /dev/null
+++ b/tests/run/i768.scala
@@ -0,0 +1,10 @@
+case class A(a: String*){
+  val s = a.toString
+}
+
+object Test {
+  def main(args: Array[String]) =
+    assert(A("a", "bc").s == "WrappedArray(a, bc)")
+}
+
+