Fix tests.

Author: odersky

tests/neg/i1503.scala

@@ -9,6 +9,6 @@ object Test {
 
   def main(args: Array[String]) = {
     (if (cond) foo1 else bar1)() // error: Unit does not take parameters
-    (if (cond) foo2 else bar2)(22) // error: missing arguments // error: missing arguments
+    (if (cond) foo2 else bar2)(22) // OK after changes to eta expansion
   }
 }

tests/neg/i1716.scala

@@ -1,9 +1,10 @@
 object Fail {
   def f(m: Option[Int]): Unit = {
      m match {
-      case x @ Some[_] =>       // error
+      case x @ Some[_] =>       // error: unbound wildcard type
       case _           =>
     }
   }
-  Some[_]  // error
+  Some[_]  // error: unbound wildcard type
+
 }