Enable ES6 unscopables

src/bootstrapper.cc

 // Copyright 2014 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.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/code-stubs.h"
 #include "src/extensions/externalize-string-extension.h"
 #include "src/extensions/free-buffer-extension.h"
@@ skipping 1574 matching lines @@
   INSTALL_NATIVE(JSFunction, "EndPerformSplice",
                  observers_end_perform_splice);
   INSTALL_NATIVE(JSFunction, "NativeObjectObserve",
                  native_object_observe);
   INSTALL_NATIVE(JSFunction, "NativeObjectGetNotifier",
                  native_object_get_notifier);
   INSTALL_NATIVE(JSFunction, "NativeObjectNotifierPerformChange",
                  native_object_notifier_perform_change);
 
   INSTALL_NATIVE(Symbol, "symbolIterator", iterator_symbol);
+  INSTALL_NATIVE(Symbol, "symbolUnscopables", unscopables_symbol);
 
   INSTALL_NATIVE_MATH(abs)
   INSTALL_NATIVE_MATH(acos)
   INSTALL_NATIVE_MATH(asin)
   INSTALL_NATIVE_MATH(atan)
   INSTALL_NATIVE_MATH(atan2)
   INSTALL_NATIVE_MATH(ceil)
   INSTALL_NATIVE_MATH(cos)
   INSTALL_NATIVE_MATH(exp)
   INSTALL_NATIVE_MATH(floor)
@@ skipping 10 matching lines @@
 }
 
 
 void Genesis::InstallExperimentalNativeFunctions() {
   if (FLAG_harmony_proxies) {
     INSTALL_NATIVE(JSFunction, "DerivedHasTrap", derived_has_trap);
     INSTALL_NATIVE(JSFunction, "DerivedGetTrap", derived_get_trap);
     INSTALL_NATIVE(JSFunction, "DerivedSetTrap", derived_set_trap);
     INSTALL_NATIVE(JSFunction, "ProxyEnumerate", proxy_enumerate);
   }
-
-  if (FLAG_harmony_unscopables) {
-    INSTALL_NATIVE(Symbol, "symbolUnscopables", unscopables_symbol);
-  }
 }
 
 #undef INSTALL_NATIVE
 
 
 Handle<JSFunction> Genesis::InstallInternalArray(
     Handle<JSBuiltinsObject> builtins,
     const char* name,
     ElementsKind elements_kind) {
   // --- I n t e r n a l   A r r a y ---
@@ skipping 416 matching lines @@
 
 
 bool Genesis::InstallExperimentalNatives() {
   for (int i = ExperimentalNatives::GetDebuggerCount();
        i < ExperimentalNatives::GetBuiltinsCount();
        i++) {
     INSTALL_EXPERIMENTAL_NATIVE(i, proxies, "proxy.js")
     INSTALL_EXPERIMENTAL_NATIVE(i, generators, "generator.js")
     INSTALL_EXPERIMENTAL_NATIVE(i, strings, "harmony-string.js")
     INSTALL_EXPERIMENTAL_NATIVE(i, arrays, "harmony-array.js")
-    INSTALL_EXPERIMENTAL_NATIVE(i, unscopables, "unscopables.js")
   }
 
   InstallExperimentalNativeFunctions();
   return true;
 }
 
 
 static void InstallBuiltinFunctionId(Handle<JSObject> holder,
                                      const char* function_name,
                                      BuiltinFunctionId id) {
@@ skipping 617 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 } }  // namespace v8::internal