Don't generate implicit overrides delegating to Java defaults

#KT-40920 Fixed

compiler/testData/codegen/box/jvm8/defaults/kt40920.kt

@@ -0,0 +1,28 @@
+// !JVM_DEFAULT_MODE: enable
+// TARGET_BACKEND: JVM
+// FILE: JBase.java
+
+public interface JBase extends Base {
+    default String test() {
+        return "OK";
+    }
+}
+
+// FILE: main.kt
+// JVM_TARGET: 1.8
+// WITH_RUNTIME
+
+interface Base {
+    @JvmDefault
+    fun test(): String = "Base"
+}
+
+interface LeftBase : Base
+interface Right : JBase
+
+interface Child : LeftBase, Right
+
+
+fun box(): String {
+    return object : Child {}.test()
+}

compiler/testData/codegen/box/jvm8/defaults/noDefaultImpls/kt40920.kt

@@ -0,0 +1,27 @@
+// !JVM_DEFAULT_MODE: all
+// TARGET_BACKEND: JVM
+// FILE: JBase.java
+
+public interface JBase extends Base {
+    default String test() {
+        return "OK";
+    }
+}
+
+// FILE: main.kt
+// JVM_TARGET: 1.8
+// WITH_RUNTIME
+
+interface Base {
+    fun test(): String = "Base"
+}
+
+interface LeftBase : Base
+interface Right : JBase
+
+interface Child : LeftBase, Right
+
+
+fun box(): String {
+    return object : Child {}.test()
+}