Detect clash of mixedin val and existing member.

Before, we looked only at the result type, which was silly.
This was originally motivated by a hack to get to the error
about conflicting paramaccessors. The error detection for that
can now be formulated more directly.

Fixes scala/scala-dev#244

1 files changed, 2 insertions, 5 deletions

diff --git a/test/files/neg/t1960.scala b/test/files/neg/t1960.scala
index 5311940b5a..f4fdb341c6 100644
--- a/test/files/neg/t1960.scala
+++ b/test/files/neg/t1960.scala
@@ -1,5 +1,2 @@
-object ClassFormatErrorExample extends App { new Aclass(1) }
-
-trait TBase { var p:Int = 0; def f(p1: Int) {} }
-
-class Aclass (p: Int) extends TBase { def g() { f(p) } }
+trait T { var vr: Int = 0 ; val vl: Int = 0 }
+class C(vr: Int, vl: Int) extends T { def ref = vr + vl }