SI-3353 don't extract <unapply-selector> into named-arg local val

This already fixes all of SI-3353 because no named-args-block is
generated anymore (they are avoided if they have a single expr).

So the same NPE in extractorFormalTypes as described in the ticket
is no longer triggered.

I think that's all there is to fix, since extractor patterns are
translated to unapply calls with one argument, i think it's not
possible to write a pattern that would result in a named-apply block.

1 files changed, 10 insertions, 0 deletions

diff --git a/test/files/run/t3353.scala b/test/files/run/t3353.scala
new file mode 100644
index 0000000000..eeb63c1b05
--- /dev/null
+++ b/test/files/run/t3353.scala
@@ -0,0 +1,10 @@
+object Test extends App {
+
+  "foo" match {
+    case Matcher(result) => println(result)
+  }
+
+  object Matcher{
+    def unapply(s: String)(implicit secondParam: Option[String] = None) = Some("Got: " + s + " and " + secondParam)
+  }
+}