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

src/compiler/bytecode-graph-builder.h

 // 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.
 
 #ifndef V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_
 #define V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_
 
 #include "src/compiler.h"
 #include "src/compiler/js-graph.h"
 #include "src/interpreter/bytecode-array-iterator.h"
@@ skipping 29 matching lines @@
   // Get or create the node that represents the outer function context.
   Node* GetFunctionContext();
 
   // Builder for accessing a (potentially immutable) object field.
   Node* BuildLoadObjectField(Node* object, int offset);
   Node* BuildLoadImmutableObjectField(Node* object, int offset);
 
   // Builder for accessing type feedback vector.
   Node* BuildLoadFeedbackVector();
 
-  // Builder for loading the global object.
-  Node* BuildLoadGlobalObject();
-
   // Builder for loading the a native context field.
   Node* BuildLoadNativeContextField(int index);
 
   // Helper function for creating a pair containing type feedback vector and
   // a feedback slot.
   VectorSlotPair CreateVectorSlotPair(int slot_id);
 
   // Replaces the frame state inputs with empty frame states.
   void AddEmptyFrameStateInputs(Node* node);
 
@@ skipping 160 matching lines @@
   NodeVector values_;
   int register_base_;
 };
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_