Don't generate delegation to java default methods

#KT-15226  Fixed

compiler/testData/codegen/java8/box/delegationBy/diamond2.kt

@@ -0,0 +1,35 @@
+// FILE: Base.java
+
+public interface Base {
+    String getValue();
+
+    default String test()
+    {
+        return getValue();
+    }
+}
+
+// FILE: Base2.java
+public interface Base2 extends Base {
+
+}
+
+
+// FILE: main.kt
+
+interface KBase : Base {
+    override fun test() = "O" + getValue()
+}
+
+interface Derived : KBase, Base2
+
+class K : Derived {
+    override fun getValue() = "K"
+}
+
+fun box(): String {
+    val z = object : Derived by K() {
+        override fun getValue() = "Fail"
+    }
+    return z.test()
+}