[Interpreter] Add support for global declarations and load/store of global variables

src/frames.h

 // Copyright 2012 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_FRAMES_H_
 #define V8_FRAMES_H_
 
 #include "src/allocation.h"
 #include "src/handles.h"
 #include "src/safepoint-table.h"
@@ skipping 163 matching lines @@
       StandardFrameConstants::kFixedFrameSize + 5 * kPointerSize;
 };
 
 
 class InterpreterFrameConstants : public AllStatic {
  public:
   // Register file pointer relative.
   static const int kLastParamFromRegisterPointer =
       StandardFrameConstants::kFixedFrameSize + kPointerSize;
   static const int kFunctionFromRegisterPointer = kPointerSize;
+  static const int kContextFromRegisterPointer = 2 * kPointerSize;
 };
 
 
 // Abstract base class for all stack frames.
 class StackFrame BASE_EMBEDDED {
  public:
 #define DECLARE_TYPE(type, ignore) type,
   enum Type {
     NONE = 0,
     STACK_FRAME_TYPE_LIST(DECLARE_TYPE)
@@ skipping 752 matching lines @@
 
 
 // Reads all frames on the current stack and copies them into the current
 // zone memory.
 Vector<StackFrame*> CreateStackMap(Isolate* isolate, Zone* zone);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FRAMES_H_