Implement "global" property of global object

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index fe4721617cd8a2ffa3be6f6448fdd28f5d876907..7d31467101a3986e63843611aabdb33ca22d7061 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -3467,6 +3467,18 @@ void Genesis::InitializeGlobal_harmony_array_prototype_values() {
                         NONE);
 }
 
+void Genesis::InitializeGlobal_harmony_global() {
+  if (!FLAG_harmony_global) return;
+  Handle<JSGlobalObject> global_object(
+      JSGlobalObject::cast(native_context()->global_object()));
+  Handle<JSGlobalProxy> global_proxy(
+      JSGlobalProxy::cast(native_context()->global_proxy()));
+  Isolate* isolate = global_object->GetIsolate();
+  Factory* factory = isolate->factory();
+  Handle<String> global_name = factory->global_string();
+  JSObject::AddProperty(global_object, global_name, global_proxy, DONT_ENUM);
+}
+
 Handle<JSFunction> Genesis::InstallArrayBuffer(Handle<JSObject> target,
                                                const char* name,
                                                Builtins::Name call,
@@ -3932,6 +3944,7 @@ bool Genesis::InstallExperimentalNatives() {
   static const char* harmony_restrictive_generators_natives[] = {nullptr};
   static const char* harmony_trailing_commas_natives[] = {nullptr};
   static const char* harmony_class_fields_natives[] = {nullptr};
+  static const char* harmony_global_natives[] = {nullptr};
 
   for (int i = ExperimentalNatives::GetDebuggerCount();
        i < ExperimentalNatives::GetBuiltinsCount(); i++) {