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

src/crankshaft/x64/lithium-codegen-x64.cc

Index: src/crankshaft/x64/lithium-codegen-x64.cc
diff --git a/src/crankshaft/x64/lithium-codegen-x64.cc b/src/crankshaft/x64/lithium-codegen-x64.cc
index ae476e1bfae7b79bf7c4c93637a01ac24845a87a..4e77aa1e14783099c241ac01130c4288d7392924 100644
--- a/src/crankshaft/x64/lithium-codegen-x64.cc
+++ b/src/crankshaft/x64/lithium-codegen-x64.cc
@@ -3266,8 +3266,10 @@
   __ jmp(&receiver_ok, Label::kNear);
   __ bind(&global_object);
   __ movp(receiver, FieldOperand(function, JSFunction::kContextOffset));
-  __ movp(receiver, ContextOperand(receiver, Context::NATIVE_CONTEXT_INDEX));
-  __ movp(receiver, ContextOperand(receiver, Context::GLOBAL_PROXY_INDEX));
+  __ movp(receiver,
+          Operand(receiver,
+                  Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
+  __ movp(receiver, FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
 
   __ bind(&receiver_ok);
 }