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, 0 insertions, 40 deletions

diff --git a/test/files/run/reflection-implClass.scala b/test/files/run/reflection-implClass.scala
deleted file mode 100644
index 4242530dd1..0000000000
--- a/test/files/run/reflection-implClass.scala
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
- * Tries to load a symbol for the `Foo$class` using Scala reflection.
- * Since trait implementation classes do not get pickling information
- * symbol for them should be created using fallback mechanism
- * that exposes Java reflection information dressed up in
- * a Scala symbol.
- */
-object Test extends App with Outer {
-  import scala.reflect.{ClassTag, classTag}
-  import scala.reflect.runtime.universe._
-  import scala.reflect.runtime.{currentMirror => cm}
-
-  assert(cm.classSymbol(classTag[Foo].runtimeClass).info.decl(TermName("bar")).info ==
-    cm.classSymbol(classTag[Bar].runtimeClass).info.decl(TermName("foo")).info)
-
-  val s1 = implClass(classTag[Foo].runtimeClass)
-  assert(s1 != NoSymbol)
-  assert(s1.info != NoType)
-  assert(s1.companion.info != NoType)
-  assert(s1.companion.info.decl(TermName("bar")) != NoSymbol)
-  val s2 = implClass(classTag[Bar].runtimeClass)
-  assert(s2 != NoSymbol)
-  assert(s2.info != NoType)
-  assert(s2.companion.info != NoType)
-  assert(s2.companion.info.decl(TermName("foo")) != NoSymbol)
-  def implClass(clazz: Class[_]) = {
-    val implClass = Class.forName(clazz.getName + "$class")
-    cm.classSymbol(implClass)
-  }
-}
-
-trait Foo {
-  def bar = 1
-}
-
-trait Outer {
-  trait Bar {
-    def foo = 1
-  }
-}