KJS: deprecate enumerable annotation since it's no longer has any effect and rewrite test which checks enumerability of members

js/js.libraries/src/core/annotations.kt

@@ -37,6 +37,7 @@ public annotation class nativeInvoke
 @Target(CLASS, FUNCTION, PROPERTY)
 internal annotation class library(public val name: String = "")
 
+@Deprecated("It is no longer has any effect and will be dropped in a future version")
 @Target(PROPERTY)
 public annotation class enumerable()
 

js/js.translator/testData/box/propertyAccess/enumerable.kt

@@ -1,47 +1,26 @@
-// FILE: enumerable.kt
 package foo
 
-external fun <T> _enumerate(o: T): T = noImpl
-
-external fun <T> _findFirst(o: Any): T = noImpl
-
-class Test() {
-    val a: Int = 100
-    val b: String = "s"
-}
-
-class P() {
-    @enumerable
-    val a: Int = 100
-    val b: String = "s"
+class P {
+    val simpleProp: Int = 100
+    val anotherProp: Int = 100
+    val propWithGetter: Int
+        get() = 1
+    fun func() = "2"
 }
 
 fun box(): String {
-    val test = _enumerate(Test())
-    val p = _enumerate(P())
-    if (100 != test.a) return "fail1: ${test.a}"
-    if ("s" != test.b) return "fail2: ${test.b}"
-    if (p.a != 100) return "fail3: ${p.a}"
+    val expectedKeys = setOf("simpleProp", "anotherProp")
+    assertEquals(expectedKeys, P().keys())
 
-    val result = _findFirst<Int>(object {
-        val test = 100
-    })
-    if (result != 100) return "fail4: $result"
+    assertEquals(expectedKeys, object {
+        val simpleProp: Int = 100
+        val anotherProp: Int = 100
+        val propWithGetter: Int
+            get() = 1
+        fun func() = "2"
+    }.keys())
 
     return "OK"
 }
 
-// FILE: enumerate.js
-function _enumerate(o) {
-    var r = {};
-    for (var p in o) {
-        r[p] = o[p];
-    }
-    return r;
-}
-
-function _findFirst(o) {
-    for (var p in o) {
-        return o[p];
-    }
-}
+fun Any.keys(): Set<String> = (js("Object").keys(this) as Array<String>).toSet()