[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/methodmodifiers/intersectionJavaModifiersOverride.kt

@@ -0,0 +1,91 @@
+// FIR_IDENTICAL
+// TARGET_BACKEND: JVM
+
+// FILE: Java1.java
+public interface Java1 {
+    public abstract void foo();
+}
+
+// FILE: Java2.java
+public class Java2 {
+    public final void foo(){};
+    public native void foo2();
+    public synchronized void foo3(){};
+}
+
+// FILE: Java3.java
+public interface Java3 {
+    public void foo();
+    public void foo2();
+    public void foo3();
+}
+
+// FILE: 1.kt
+
+abstract class A : Java1, Java2() //Kotlin ← Java1, Java2
+
+class B : Java2(), Java3
+
+class C : Java2(), Java3 {
+    override fun foo2() { }
+    override fun foo3() { }
+}
+
+abstract class D : Java1, Java3
+
+class E : Java1, Java3 {
+    override fun foo() { }
+    override fun foo2() { }
+    override fun foo3() { }
+}
+
+class F : Java2(), KotlinInterface  //Kotlin ← Java, Kotlin2
+
+class G: Java2(), KotlinInterface {
+    override fun foo2() { }
+    override fun foo3() { }
+}
+
+abstract class H : Java1, KotlinInterface
+
+class I : Java1, KotlinInterface {
+    override fun foo(){ }
+    override fun foo2() { }
+    override fun foo3() { }
+}
+
+interface KotlinInterface {
+    fun foo()
+    fun foo2()
+    fun foo3()
+}
+
+fun test(a: A, b: B, c: C, d: D, e: E, f: F, g: G,h: H, i: I){
+    a.foo()
+    a.foo2()
+    a.foo3()
+    b.foo()
+    b.foo2()
+    b.foo3()
+    c.foo()
+    c.foo2()
+    c.foo3()
+    d.foo()
+    d.foo2()
+    d.foo3()
+    e.foo()
+    e.foo2()
+    e.foo3()
+    f.foo()
+    f.foo2()
+    f.foo3()
+    g.foo()
+    g.foo2()
+    g.foo3()
+    h.foo()
+    h.foo2()
+    h.foo3()
+    i.foo()
+    i.foo2()
+    i.foo3()
+}