K2: repeat K1 behavior around multiple inheritance by delegation

#KT-56720 Fixed

compiler/testData/diagnostics/tests/override/manyImplFromOneJavaInterfaceWithDelegation.fir.kt

@@ -1,19 +0,0 @@
-// FILE: A.java
-
-public interface A {
-    default void foo() {}
-}
-
-// FILE: B.java
-
-public interface B extends A
-
-// FILE: C.java
-
-public interface C extends A
-
-// FILE: test.kt
-
-class Adapter : B, C
-
-<!MANY_IMPL_MEMBER_NOT_IMPLEMENTED!>class D<!>(val adapter: Adapter) : B by adapter, C by adapter

compiler/testData/diagnostics/tests/override/manyImplFromOneJavaInterfaceWithDelegation.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // FILE: A.java
 
 public interface A {
@@ -6,14 +7,22 @@ public interface A {
 
 // FILE: B.java
 
-public interface B extends A
+public interface B extends A {}
 
 // FILE: C.java
 
-public interface C extends A
+public interface C extends A {}
+
+// FILE: CK.kt
+
+interface CK : A
 
 // FILE: test.kt
 
 class Adapter : B, C
 
 class D(val adapter: Adapter) : B by adapter, C by adapter
+class E(val b: B, val c: C) : B by b, C by c
+
+class AdapterK : B, CK
+class F(val adapter: AdapterK) : B by adapter, CK by adapter

compiler/testData/diagnostics/tests/override/manyImplFromOneKotlinInterfaceWithDelegation.kt

@@ -5,6 +5,10 @@ interface A {
     fun foo() {}
 }
 
+// FILE: BJ.java
+
+public interface BJ extends A {}
+
 // FILE: B.kt
 
 interface B : A
@@ -18,3 +22,7 @@ interface C : A
 class Adapter : B, C
 
 <!MANY_IMPL_MEMBER_NOT_IMPLEMENTED!>class D<!>(val adapter: Adapter) : B by adapter, C by adapter
+
+class AdapterJ : BJ, C
+
+<!MANY_IMPL_MEMBER_NOT_IMPLEMENTED!>class DJ<!>(val adapter: AdapterJ) : BJ by adapter, C by adapter