convert BitVector to use pointer size blocks

src/compiler/frame.h

 // 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.
 
 #ifndef V8_COMPILER_FRAME_H_
 #define V8_COMPILER_FRAME_H_
 
 #include "src/v8.h"
 
-#include "src/data-flow.h"
+#include "src/bit-vector.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 // Collects the spill slot requirements and the allocated general and double
 // registers for a compiled function. Frames are usually populated by the
 // register allocator and are used by Linkage to generate code for the prologue
 // and epilogue to compiled code.
 class Frame {
@@ skipping 74 matching lines @@
   int offset_;  // Encodes SP or FP in the low order bit.
 
   static const int kFromSp = 1;
   static const int kFromFp = 0;
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_FRAME_H_