Remove dependence of code-stubs on codegen, the virtual frame code generator....

src/x64/code-stubs-x64.h

Index: src/x64/code-stubs-x64.h
===================================================================
--- src/x64/code-stubs-x64.h	(revision 5369)
+++ src/x64/code-stubs-x64.h	(working copy)
@@ -28,9 +28,8 @@
 #ifndef V8_X64_CODE_STUBS_X64_H_
 #define V8_X64_CODE_STUBS_X64_H_
 
-#include "codegen-inl.h"
-#include "ast.h"
 #include "ic-inl.h"
+#include "type-info.h"
 
 namespace v8 {
 namespace internal {
@@ -107,11 +106,6 @@
   void GenerateCall(MacroAssembler* masm, Register left, Smi* right);
   void GenerateCall(MacroAssembler* masm, Smi* left, Register right);
 
-  Result GenerateCall(MacroAssembler* masm,
-                      VirtualFrame* frame,
-                      Result* left,
-                      Result* right);
-
   bool ArgsInRegistersSupported() {
     return (op_ == Token::ADD) || (op_ == Token::SUB)
         || (op_ == Token::MUL) || (op_ == Token::DIV);
@@ -202,6 +196,8 @@
   virtual InlineCacheState GetICState() {
     return BinaryOpIC::ToState(runtime_operands_type_);
   }
+
+  friend class CodeGenerator;
 };
 
 class StringHelper : public AllStatic {