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, 12 deletions

diff --git a/src/library/scala/runtime/java8/JFunction1.java b/src/library/scala/runtime/java8/JFunction1.java
index 7c3974e94a..2b8580271a 100644
--- a/src/library/scala/runtime/java8/JFunction1.java
+++ b/src/library/scala/runtime/java8/JFunction1.java
@@ -7,18 +7,6 @@ package scala.runtime.java8;
 
 @FunctionalInterface
 public interface JFunction1<T1, R> extends scala.Function1<T1, R> {
-    default void $init$() {
-    };
-
-    @Override
-    default <A> scala.Function1<T1, A> andThen(scala.Function1<R, A> g) {
-        return scala.Function1$class.andThen(this, g);
-    }
-
-    @Override
-    default <A> scala.Function1<A, R> compose(scala.Function1<A, T1> g) {
-        return scala.Function1$class.compose(this, g);
-    }
     default void apply$mcVI$sp(int v1) {
         apply((T1) scala.runtime.BoxesRunTime.boxToInteger(v1));
     }