Fix x64 build.

src/x64/assembler-x64.cc

 // Copyright 2009 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 666 matching lines @@
 }
 
 void VirtualFrame::SyncElementByPushing(int a) {
   UNIMPLEMENTED();
 }
 
 void VirtualFrame::SyncRange(int a, int b) {
   UNIMPLEMENTED();
 }
 
-VirtualFrame::VirtualFrame(CodeGenerator* cgen)
-    : cgen_(cgen),
-      masm_(NULL),
-      elements_(0),
-      parameter_count_(0),
-      local_count_(0),
-      stack_pointer_(0),
-      frame_pointer_(kIllegalIndex) {
+VirtualFrame::VirtualFrame() : elements_(0) {
   UNIMPLEMENTED();
 }
 
 byte* ArgumentsAdaptorFrame::GetCallerStackPointer() const {
   UNIMPLEMENTED();
   return NULL;
 }
 
 void Builtins::Generate_Adaptor(MacroAssembler* a, Builtins::CFunctionId b) {
   UNIMPLEMENTED();
@@ skipping 71 matching lines @@
   UNIMPLEMENTED();
   return NULL;
 }
 
 byte* JavaScriptFrame::GetCallerStackPointer() const {
   UNIMPLEMENTED();
   return NULL;
 }
 
 } }  // namespace v8::internal