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..cbc8aceffa999db2b5ecec9a38d2fdce5c0a1151 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1148,6 +1148,10 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
   native_context()->set_script_context_table(*script_context_table);
   InstallGlobalThisBinding();
 
+  // https://tc39.github.io/proposal-global
+  Handle<String> global_name = factory->global_string();
+  JSObject::AddProperty(global_object, global_name, global_object, DONT_ENUM);
+
   {  // --- O b j e c t ---
     Handle<String> object_name = factory->Object_string();
     Handle<JSFunction> object_function = isolate->object_function();