Remove the Proxy enumerate trap

test/mjsunit/harmony/debug-stepin-proxies.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Flags: --expose-debug-as debug --harmony-proxies
 
 Debug = debug.Debug
 
 var exception = null;
 var log = [];
@@ skipping 18 matching lines @@
 var handler = {
   has: function(target, name) {
     return true;                     // h
   },                                 // i
   get: function(target, name) {
     return 42;                       // j
   },                                 // k
   set: function(target, name, value) {
     return false;                    // l
   },                                 // m
-  enumerate: function(target) {
-    function* keys() {               // n
-      yield "foo";                   // o
-      yield "bar";                   // p
-    }                                // q
-    return keys();                   // r
-  },                                 // s
 }
 
 var proxy = new Proxy(target, handler);
 
 Debug.setListener(listener);
 debugger;                            // a
 var has = "step" in proxy;           // b
 var get = proxy.step;                // c
 proxy.step = 43;                     // d
-for (var i in proxy) {               // e
-  log.push(i);                       // f
-}
 
 Debug.setListener(null);             // g
 
 assertNull(exception);
 assertTrue(has);
 assertEquals(42, get);
 
 assertEquals([
   "a0",
   "b0", "h4b20", "i2b20",                           // [[Has]]
   "c0", "j4c15", "k2c15",                           // [[Get]]
   "d0", "l4d11", "m2d11",                           // [[Set]]
-  "e14", "r4e14", "q4r11e14", "s2e14",              // for-in [[Enumerate]]
-      "o6e14", "q4e14", "p6e14", "q4e14", "q4e14",  // exhaust iterator
-  "e9",                                             // for-in-body
-      "h4e9","i2e9",                                // [[Has]] property
-  "f2","foo", "e9",                                 // for-in-body
-    "h4e9","i2e9",                                  // [[Has]]property
-  "f2","bar", "e9",                                 // for-in-body
   "g0"
 ], log);