[es6] implement Object.assign

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 3c957364fcbf92c8ed44637cf0209ece12968bd7..377b43152f37e974f27edd0d06db8824cf87df82 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1665,6 +1665,7 @@ EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_unicode_regexps)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_computed_property_names)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_rest_parameters)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_reflect)
+EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_object)
 
 
 void Genesis::InstallNativeFunctions_harmony_proxies() {
@@ -1693,6 +1694,7 @@ EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_sloppy)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_unicode)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_computed_property_names)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_rest_parameters)
+EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_object)
 
 void Genesis::InitializeGlobal_harmony_regexps() {
   Handle<JSObject> builtins(native_context()->builtins());
@@ -2317,6 +2319,8 @@ bool Genesis::InstallExperimentalNatives() {
   static const char* harmony_rest_parameters_natives[] = {NULL};
   static const char* harmony_reflect_natives[] = {"native harmony-reflect.js",
                                                   NULL};
+  static const char* harmony_object_natives[] = {"native harmony-object.js",
+                                                 NULL};
 
   for (int i = ExperimentalNatives::GetDebuggerCount();
        i < ExperimentalNatives::GetBuiltinsCount(); i++) {