Implement experimental exponentiation operator

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 31d6e3e00c2cc355bc8b2caaface11a6989d55bd..c63c63149a8b59054cd1b98eec1c3a9dc61f1ff3 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1615,6 +1615,7 @@ EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_unicode)
 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_exponentiation)
 
 
 void Genesis::InstallNativeFunctions_harmony_proxies() {
@@ -1647,6 +1648,7 @@ 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_exponentiation)
 
 void Genesis::InitializeGlobal_harmony_regexps() {
   Handle<JSObject> builtins(native_context()->builtins());
@@ -2230,6 +2232,7 @@ bool Genesis::InstallExperimentalNatives() {
   static const char* harmony_unicode_regexps_natives[] = {NULL};
   static const char* harmony_computed_property_names_natives[] = {NULL};
   static const char* harmony_rest_parameters_natives[] = {NULL};
+  static const char* harmony_exponentiation_natives[] = {NULL};
 
   for (int i = ExperimentalNatives::GetDebuggerCount();
        i < ExperimentalNatives::GetBuiltinsCount(); i++) {