Fix #1640: Avoid applications with untyped function parts

Avoid applications with untyped function parts even if program is erroneous.
Taking the symbol fails for these applications, which can cause crashes.

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/neg/i1640.scala b/tests/neg/i1640.scala
new file mode 100644
index 000000000..78351a1d6
--- /dev/null
+++ b/tests/neg/i1640.scala
@@ -0,0 +1,4 @@
+object Test extends App {
+  List(1, 2, 3) map (_ match { case x => x + 1 })
+  List((1, 2)) x (_ match { case (x, z) => x + z }) // error
+}