Revert of [runtime] Replace global object link with native context link in all contexts.

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index e4f75a4e0f2377bf69ed7c1f404c63141b3ab443..dae884ac2214e3c2423aa1c80a23f7b94051f014 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -2137,13 +2137,14 @@
                         HObjectAccess::ForContextSlot(Context::EXTENSION_INDEX),
                         graph()->GetConstant0());
 
-  // Copy the native context from the previous context.
-  HValue* native_context = Add<HLoadNamedField>(
+  // Copy the global object from the previous context.
+  HValue* global_object = Add<HLoadNamedField>(
       context(), nullptr,
-      HObjectAccess::ForContextSlot(Context::NATIVE_CONTEXT_INDEX));
-  Add<HStoreNamedField>(function_context, HObjectAccess::ForContextSlot(
-                                              Context::NATIVE_CONTEXT_INDEX),
-                        native_context);
+      HObjectAccess::ForContextSlot(Context::GLOBAL_OBJECT_INDEX));
+  Add<HStoreNamedField>(function_context,
+                        HObjectAccess::ForContextSlot(
+                            Context::GLOBAL_OBJECT_INDEX),
+                        global_object);
 
   // Initialize the rest of the slots to undefined.
   for (int i = Context::MIN_CONTEXT_SLOTS; i < length; ++i) {