Improve support for Objective-C methods clashing with methods of Any (#2914)

backend.native/tests/interop/objc/smoke.kt

@@ -24,6 +24,7 @@ fun run() {
     testVarargs()
     testOverrideInit()
     testMultipleInheritanceClash()
+    testClashingWithAny()
 
     assertEquals(2, ForwardDeclaredEnum.TWO.value)
 
@@ -334,6 +335,30 @@ fun testMultipleInheritanceClash() {
     assertEquals(clash2, clash2.delegate())
 }
 
+fun testClashingWithAny() {
+    assertEquals("description", TestClashingWithAny1().toString())
+    assertEquals("toString", TestClashingWithAny1().toString_())
+    assertEquals("toString_", TestClashingWithAny1().toString__())
+    assertEquals(1, TestClashingWithAny1().hashCode())
+    assertEquals(31, TestClashingWithAny1().hashCode_())
+    assertFalse(TestClashingWithAny1().equals(TestClashingWithAny1()))
+    assertTrue(TestClashingWithAny1().equals_(TestClashingWithAny1()))
+
+    assertEquals("description", TestClashingWithAny2().toString())
+    assertEquals(Unit, TestClashingWithAny2().toString_())
+    assertEquals(2, TestClashingWithAny2().hashCode())
+    assertEquals(Unit, TestClashingWithAny2().hashCode_())
+    assertFalse(TestClashingWithAny2().equals(TestClashingWithAny2()))
+    assertEquals(Unit, TestClashingWithAny2().equals_(42))
+
+    assertEquals("description", TestClashingWithAny3().toString())
+    assertEquals("toString:11", TestClashingWithAny3().toString(11))
+    assertEquals(3, TestClashingWithAny3().hashCode())
+    assertEquals(4, TestClashingWithAny3().hashCode(3))
+    assertFalse(TestClashingWithAny3().equals(TestClashingWithAny3()))
+    assertTrue(TestClashingWithAny3().equals())
+}
+
 fun nsArrayOf(vararg elements: Any): NSArray = NSMutableArray().apply {
     elements.forEach {
         this.addObject(it as ObjCObject)