harmony_scoping: Implement lexical bindings at top level

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 72974a317c18646800178b4c10340a85b444afcf..83d1426f9f98c18bcf9af6080f5910a780df646f 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -708,6 +708,15 @@ Handle<Context> Factory::NewGlobalContext(Handle<JSFunction> function,
 }
 
 
+Handle<GlobalContextTable> Factory::NewGlobalContextTable(int length) {
+  Handle<FixedArray> array = NewFixedArray(length + 1);  // TODO: cleanup
+  array->set_map_no_write_barrier(*global_context_table_map());
+  Handle<GlobalContextTable> context_table =
+      Handle<GlobalContextTable>::cast(array);
+  return context_table;
+}
+
+
 Handle<Context> Factory::NewModuleContext(Handle<ScopeInfo> scope_info) {
   Handle<FixedArray> array =
       NewFixedArray(scope_info->ContextLength(), TENURED);