Fix problems related to t0039

This test case exercised several problems:

1.)2.) Two ways to run into a cyclic references. Fixed by
 - assuming an early info when completing a typedef, similarly to what is done for a classdef
 - doing wellformed bounds checking in a later phase.

Failure to check whether arguments correspond to F-bounds.
 - a substitution was missing.

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/new/t0039.scala b/tests/new/t0039.scala
new file mode 100644
index 000000000..652c606b0
--- /dev/null
+++ b/tests/new/t0039.scala
@@ -0,0 +1,6 @@
+abstract class Extensible[A, This <: Extensible[A, This]](x: A, xs: This) { self: This =>
+	def mkObj(x: A, xs: This): This;
+}
+class Fixed[A](x: A, xs: Fixed[A]) extends Extensible[A, Fixed[A]](x, xs) {
+	def mkObj(x: A, xs: Fixed[A]) = new Fixed(x, xs);
+}