[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/methodparameters/basicJavaThisOverride.kt

@@ -0,0 +1,72 @@
+// FIR_IDENTICAL
+// TARGET_BACKEND: JVM
+// FULL_JDK
+
+// FILE: Java1.java
+public class Java1 {
+    public void foo(Java1 this){};
+    public class Inner {
+        public void bar(Inner this){};
+    }
+}
+
+// FILE: Java2.java
+public class Java2 extends Java1 { }
+
+// FILE: Java3.java
+public class Java3 extends KotlinClass { }
+
+// FILE: Java4.java
+public class Java4 extends KotlinClass {
+    public void foo(Java4 this){ };
+    public class Inner {
+        public void bar(Inner this){};
+    }
+}
+
+// FILE: 1.kt
+
+class A : Java1()   //Kotlin ← Java
+
+class B : Java1() { //Kotlin ← Java with explicit override
+    override fun foo() { }
+}
+
+class C : Java2()   //Kotlin ← Java1 ←Java2
+
+class D : Java2() { //Kotlin ← Java1 ←Java2 with explicit override
+    override fun foo() { }
+}
+
+class E : Java3()   //Kotlin ← Java ← Kotlin ← Java
+
+class F : Java3() { //Kotlin ← Java ← Kotlin ← Java with explicit override
+    override fun foo() { }
+}
+
+class G : Java4()   //Kotlin ← Java ← Kotlin ← Java with explicit override in java
+
+class H : Java4() { //Kotlin ← Java ← Kotlin ← Java with explicit override in java and kotlin
+    override fun foo() { }
+}
+
+open class KotlinClass: Java1()
+
+fun test(a: A, b: B, c: C, d: D, e: E, f: F, g: G, h: H) {
+    a.foo()
+    a.Inner().bar()
+    b.foo()
+    b.Inner().bar()
+    c.foo()
+    c.Inner().bar()
+    d.foo()
+    d.Inner().bar()
+    e.foo()
+    e.Inner().bar()
+    f.foo()
+    f.Inner().bar()
+    g.foo()
+    g.Inner().bar()
+    h.foo()
+    h.Inner().bar()
+}