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

src/compiler/js-call-reducer.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-call-reducer.h"
 
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-matchers.h"
 #include "src/objects-inl.h"
 #include "src/type-feedback-vector-inl.h"
@@ skipping 243 matching lines @@
   CallICNexus nexus(p.feedback().vector(), p.feedback().slot());
   Handle<Object> feedback(nexus.GetFeedback(), isolate());
   if (feedback->IsAllocationSite()) {
     // Retrieve the Array function from the {node}.
     Node* array_function;
     Handle<Context> native_context;
     if (GetNativeContext(node).ToHandle(&native_context)) {
       array_function = jsgraph()->HeapConstant(
           handle(native_context->array_function(), isolate()));
     } else {
-      Node* global_object = effect = graph()->NewNode(
-          javascript()->LoadContext(0, Context::GLOBAL_OBJECT_INDEX, true),
+      Node* native_context = effect = graph()->NewNode(
+          javascript()->LoadContext(0, Context::NATIVE_CONTEXT_INDEX, true),
           context, context, effect);
-      Node* native_context = effect = graph()->NewNode(
-          javascript()->LoadNativeContext(), global_object, context, effect);
       array_function = effect = graph()->NewNode(
           javascript()->LoadContext(0, Context::ARRAY_FUNCTION_INDEX, true),
           native_context, native_context, effect);
     }
 
     // Check that the {target} is still the {array_function}.
     Node* check = effect =
         graph()->NewNode(javascript()->StrictEqual(), target, array_function,
                          context, effect, control);
     Node* branch =
@@ skipping 118 matching lines @@
     // implementation of the CallConstructStub.
     Handle<AllocationSite> site = Handle<AllocationSite>::cast(feedback);
 
     // Retrieve the Array function from the {node}.
     Node* array_function;
     Handle<Context> native_context;
     if (GetNativeContext(node).ToHandle(&native_context)) {
       array_function = jsgraph()->HeapConstant(
           handle(native_context->array_function(), isolate()));
     } else {
-      Node* global_object = effect = graph()->NewNode(
-          javascript()->LoadContext(0, Context::GLOBAL_OBJECT_INDEX, true),
+      Node* native_context = effect = graph()->NewNode(
+          javascript()->LoadContext(0, Context::NATIVE_CONTEXT_INDEX, true),
           context, context, effect);
-      Node* native_context = effect = graph()->NewNode(
-          javascript()->LoadNativeContext(), global_object, context, effect);
       array_function = effect = graph()->NewNode(
           javascript()->LoadContext(0, Context::ARRAY_FUNCTION_INDEX, true),
           native_context, native_context, effect);
     }
 
     // Check that the {target} is still the {array_function}.
     Node* check = effect =
         graph()->NewNode(javascript()->StrictEqual(), target, array_function,
                          context, effect, control);
     Node* branch =
@@ skipping 71 matching lines @@
 }
 
 
 JSOperatorBuilder* JSCallReducer::javascript() const {
   return jsgraph()->javascript();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8