Remove dependency on v8.h from TurboFan.

src/compiler/basic-block-instrumentor.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_BASIC_BLOCK_INSTRUMENTOR_H_
 #define V8_COMPILER_BASIC_BLOCK_INSTRUMENTOR_H_
 
-#include "src/v8.h"
-
 #include "src/basic-block-profiler.h"
 
 namespace v8 {
 namespace internal {
 
 class CompilationInfo;
 
 namespace compiler {
 
 class Graph;
 class Schedule;
 
 class BasicBlockInstrumentor : public AllStatic {
  public:
   static BasicBlockProfiler::Data* Instrument(CompilationInfo* info,
                                               Graph* graph, Schedule* schedule);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif