Support equals, hashCode, toString for annotations instantiated with reflection

#KT-13106 Fixed

compiler/testData/codegen/box/reflection/createAnnotation/arrayOfKClasses.kt

@@ -8,5 +8,6 @@ annotation class Anno(val klasses: Array<KClass<*>> = arrayOf(String::class, Int
 fun box(): String {
     val anno = Anno::class.constructors.single().callBy(emptyMap())
     assertEquals(listOf(String::class, Int::class), (anno.klasses as Array<KClass<*>>).toList() /* TODO: KT-9453 */)
+    assertEquals("@Anno(klasses=[class java.lang.String, int])", anno.toString())
     return "OK"
 }