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

test/unittests/compiler/js-typed-lowering-unittest.cc

 // Copyright 2014 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/code-factory.h"
 #include "src/compiler/access-builder.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/js-typed-lowering.h"
 #include "src/compiler/machine-operator.h"
@@ skipping 1141 matching lines @@
   Node* const context = Parameter(Type::Any());
   Node* const effect = graph()->start();
   Node* const control = graph()->start();
   Reduction const r =
       Reduce(graph()->NewNode(javascript()->CreateFunctionContext(8), closure,
                               context, effect, control));
   ASSERT_TRUE(r.Changed());
   EXPECT_THAT(r.replacement(),
               IsFinishRegion(IsAllocate(IsNumberConstant(Context::SizeFor(
                                             8 + Context::MIN_CONTEXT_SLOTS)),
-                                        IsBeginRegion(_), control),
+                                        IsBeginRegion(effect), control),
                              _));
 }
 
 
 TEST_F(JSTypedLoweringTest, JSCreateFunctionContextViaStub) {
   Node* const closure = Parameter(Type::Any());
   Node* const context = Parameter(Type::Any());
   Node* const effect = graph()->start();
   Node* const control = graph()->start();
   Reduction const r =
@@ skipping 15 matching lines @@
   Node* const object = Parameter(Type::Receiver());
   Node* const closure = Parameter(Type::Function());
   Node* const context = Parameter(Type::Any());
   Node* const frame_state = EmptyFrameState();
   Node* const effect = graph()->start();
   Node* const control = graph()->start();
   Reduction r =
       Reduce(graph()->NewNode(javascript()->CreateWithContext(), object,
                               closure, context, frame_state, effect, control));
   ASSERT_TRUE(r.Changed());
-  EXPECT_THAT(r.replacement(),
-              IsFinishRegion(IsAllocate(IsNumberConstant(Context::SizeFor(
-                                            Context::MIN_CONTEXT_SLOTS)),
-                                        IsBeginRegion(_), control),
-                             _));
+  EXPECT_THAT(
+      r.replacement(),
+      IsFinishRegion(
+          IsAllocate(
+              IsNumberConstant(Context::SizeFor(Context::MIN_CONTEXT_SLOTS)),
+              IsBeginRegion(IsLoadField(
+                  AccessBuilder::ForContextSlot(Context::GLOBAL_OBJECT_INDEX),
+                  context, effect, control)),
+              control),
+          _));
 }
 
 
 // -----------------------------------------------------------------------------
 // JSInstanceOf
 // Test that instanceOf is reduced if and only if the right-hand side is a
 // function constant. Functional correctness is ensured elsewhere.
 
 
 TEST_F(JSTypedLoweringTest, JSInstanceOfSpecializationWithoutSmiCheck) {
@@ skipping 49 matching lines @@
   Node* dummy = graph()->NewNode(javascript()->ToObject(), instanceOf, context,
                                  frame_state, effect, control);
   Reduction r = Reduce(instanceOf);
   ASSERT_FALSE(r.Changed());
   ASSERT_EQ(instanceOf, dummy->InputAt(0));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8