ES6 symbols: prevent reflection and proxy APIs from leaking symbols

test/mjsunit/harmony/symbols.js

Index: test/mjsunit/harmony/symbols.js
diff --git a/test/mjsunit/harmony/symbols.js b/test/mjsunit/harmony/symbols.js
index 1d98f548a45f57d0a27f14841928964c1c1bffd4..9d6c1c63f6d65818e99ca0ba98620bfcc1919577 100644
--- a/test/mjsunit/harmony/symbols.js
+++ b/test/mjsunit/harmony/symbols.js
@@ -232,7 +232,7 @@ function TestKeyHas() {
 
 function TestKeyEnum(obj) {
   for (var name in obj) {
-    assertTrue(typeof name !== "symbol")
+    assertEquals("string", typeof name)
   }
 }
 
@@ -241,19 +241,9 @@ function TestKeyNames(obj) {
   assertEquals(0, Object.keys(obj).length)
 
   var names = Object.getOwnPropertyNames(obj)
-  assertTrue(symbols.length <= names.length)
-  // TODO(rossberg): once we have iterators, the following would be:
-  //   var expected = new Set(symbols)
-  var expected = new Set
-  for (var i = 0; i < symbols.length; ++i) expected.add(symbols[i])
-  for (var i = 0; i < names.length; ++i) {
-    var name = names[i]
-    if (typeof name === 'symbol') {
-      assertTrue(expected.has(name))
-      expected.delete(name)
-    }
+  for (var i in names) {
+    assertEquals("string", typeof names[i])
   }
-  assertEquals(0, expected.size)
 }