[Test] KT-61360: add tests for the IrFakeOverrideBuilder

Add tests for fake overrides with focus on java interoperability

Co-authored-by: Aleksandra Arsenteva <aleksandra.arsenteva@jetbrains.com>

compiler/testData/ir/irText/fakeOverrides/dataclass/dataClassMethodOverride.kt

@@ -0,0 +1,61 @@
+// FIR_IDENTICAL
+// TARGET_BACKEND: JVM
+// FULL_JDK
+
+// FILE: Java1.java
+public class Java1 {
+    public Object component1(){
+        return "java1";
+    };
+
+    public void foo(Integer i){};
+}
+
+// FILE: Java2.java
+public interface Java2 {
+    public Integer component1();
+    public void foo(Object i);
+}
+
+// FILE: Java3.java
+public interface Java3 extends KotlinInterface { }
+
+// FILE: 1.kt
+data class A (val a : Int): Java1() {   //Kotlin ← Java
+    override fun foo(i: Int?) { }
+}
+
+data class B(val a : Int) : Java1(), Java2 {    //Kotlin ← Java1, Java2
+    override fun foo(i: Any?) { }
+}
+
+data class C(val a: Int): Java1(), KotlinInterface {    //Kotlin ← Java, Kotlin2
+    override fun foo(i: Any) { }
+}
+
+data class D(val a: Int): Java3 {   //Kotlin ← Java ← Kotlin
+    override fun foo(i: Any) { }
+}
+
+
+interface KotlinInterface {
+    fun component1(): Int
+    fun foo(i: Any)
+}
+
+fun test() {
+    val k: Int = A(1).component1()
+    A(1).foo(1)
+    A(1).foo(null)
+
+    val k2: Int = B(1).component1()
+    B(1).foo(1)
+    B(1).foo(null)
+
+    val k3: Int = C(1).component1()
+    C(1).foo(1)
+    C(1).foo(null)
+
+    val k4: Int = D(1).component1()
+    D(1).foo(1)
+}