Simplify the construction of virtual frame elements in preparation for...

src/virtual-frame-ia32.h

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 39 matching lines @@
    public:
     explicit SpilledScope(CodeGenerator* cgen);
 
     ~SpilledScope();
 
    private:
     CodeGenerator* cgen_;
     bool previous_state_;
   };
 
+  // An illegal index into the virtual frame.
+  static const int kIllegalIndex = -1;
+
   // Construct an initial virtual frame on entry to a JS function.
   explicit VirtualFrame(CodeGenerator* cgen);
 
   // Construct a virtual frame as a clone of an existing one.
   explicit VirtualFrame(VirtualFrame* original);
 
   // Create a duplicate of an existing valid frame element.
   FrameElement CopyElementAt(int index);
 
   // The height of the virtual expression stack.
@@ skipping 228 matching lines @@
   // Pushing a result invalidates it (its contents become owned by the
   // frame).
   void Push(Result* result);
 
   // Nip removes zero or more elements from immediately below the top
   // of the frame, leaving the previous top-of-frame value on top of
   // the frame.  Nip(k) is equivalent to x = Pop(), Drop(k), Push(x).
   void Nip(int num_dropped);
 
  private:
-  // An illegal index into the virtual frame.
-  static const int kIllegalIndex = -1;
-
   static const int kLocal0Offset = JavaScriptFrameConstants::kLocal0Offset;
   static const int kFunctionOffset = JavaScriptFrameConstants::kFunctionOffset;
   static const int kContextOffset = StandardFrameConstants::kContextOffset;
 
   static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize;
 
   CodeGenerator* cgen_;
   MacroAssembler* masm_;
 
   List<FrameElement> elements_;
@@ skipping 129 matching lines @@
   Result RawCallCodeObject(Handle<Code> code, RelocInfo::Mode rmode);
 
   bool Equals(VirtualFrame* other);
 
   friend class JumpTarget;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_VIRTUAL_FRAME_IA32_H_