Remove manual mixins in JFunctionN.v2.12.0-M3-dc9effe

These manual mixins were forwarding to the impl classes have
just been removed. We can now rely on default methods instead.

Update Tests:

 - Fix test/files/pos/t1237.scala, we can't have an outer field
   in an interface, always use the outer method.
 - Don't crash on meaningless trait early init fields
   test/files/neg/t2796.scala
 - Remove impl class relate parts of inner class test
 - Remove impl class relate parts of elidable test
 - Remove impl class related reflection test.
 - Remove test solely about trait impl classes renaming
 - Update check file with additional stub symbol error
 - Disable unstable parts of serialization test.
    - TODO explain, and reset the expectation

1 files changed, 1 insertions, 1 deletions

diff --git a/test/files/run/t5652/t5652_2.scala b/test/files/run/t5652/t5652_2.scala
index 765d16f8f5..d1de937e31 100644
--- a/test/files/run/t5652/t5652_2.scala
+++ b/test/files/run/t5652/t5652_2.scala
@@ -4,6 +4,6 @@ class A2 extends A1 with T1{
 
 object Test extends A2 {
 	def main(args: Array[String]) {
-    println(Seq(Class.forName(classOf[T1].getName + "$class"), classOf[A1], classOf[A2]).flatMap(_.getDeclaredMethods.map(_.toString).sorted).mkString("\n"))
+    println(Seq(classOf[T1], classOf[A1], classOf[A2]).flatMap(_.getDeclaredMethods.map(_.toString).sorted).mkString("\n"))
   }
 }