[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.sig.kt.txt

@@ -0,0 +1,167 @@
+// CHECK:
+//   Mangled name: A
+//   Public signature: /A|null[0]
+class A : Java1 {
+  // CHECK:
+  //   Mangled name: A#<init>(){}
+  //   Public signature: /A.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: A#foo(){}
+  //   Public signature: /A.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  /* fake */ override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: B
+//   Public signature: /B|null[0]
+class B : Java1 {
+  // CHECK:
+  //   Mangled name: B#<init>(){}
+  //   Public signature: /B.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: B#foo(){}
+  //   Public signature: /B.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: C
+//   Public signature: /C|null[0]
+class C : Java2 {
+  // CHECK:
+  //   Mangled name: C#<init>(){}
+  //   Public signature: /C.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: C#foo(){}
+  //   Public signature: /C.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  /* fake */ override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: D
+//   Public signature: /D|null[0]
+class D : Java2 {
+  // CHECK:
+  //   Mangled name: D#<init>(){}
+  //   Public signature: /D.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: D#foo(){}
+  //   Public signature: /D.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: E
+//   Public signature: /E|null[0]
+class E : Java3 {
+  // CHECK:
+  //   Mangled name: E#<init>(){}
+  //   Public signature: /E.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: E#foo(){}
+  //   Public signature: /E.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  /* fake */ override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: F
+//   Public signature: /F|null[0]
+class F : Java3 {
+  // CHECK:
+  //   Mangled name: F#<init>(){}
+  //   Public signature: /F.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: F#foo(){}
+  //   Public signature: /F.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: G
+//   Public signature: /G|null[0]
+class G : Java4 {
+  // CHECK:
+  //   Mangled name: G#<init>(){}
+  //   Public signature: /G.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: G#foo(){}
+  //   Public signature: /G.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  /* fake */ override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: H
+//   Public signature: /H|null[0]
+class H : Java4 {
+  // CHECK:
+  //   Mangled name: H#<init>(){}
+  //   Public signature: /H.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: H#foo(){}
+  //   Public signature: /H.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: KotlinClass
+//   Public signature: /KotlinClass|null[0]
+open class KotlinClass : Java1 {
+  // CHECK:
+  //   Mangled name: KotlinClass#<init>(){}
+  //   Public signature: /KotlinClass.<init>|-5645683436151566731[0]
+  //   Public signature debug description: <init>(){}
+  constructor() /* primary */
+
+  // CHECK:
+  //   Mangled name: KotlinClass#foo(){}
+  //   Public signature: /KotlinClass.foo|-1041209573719867811[0]
+  //   Public signature debug description: foo(){}
+  /* fake */ override fun foo(): Unit
+
+}
+
+// CHECK:
+//   Mangled name: #test(A;B;C;D;E;F;G;H){}
+//   Public signature: /test|-2663909601123444132[0]
+//   Public signature debug description: test(A;B;C;D;E;F;G;H){}
+fun test(a: A, b: B, c: C, d: D, e: E, f: F, g: G, h: H): Unit