Implement new inline cache.

vm/ic_stubs_x64.cc

Index: vm/ic_stubs_x64.cc
===================================================================
--- vm/ic_stubs_x64.cc	(revision 700)
+++ vm/ic_stubs_x64.cc	(working copy)
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-#include "vm/globals.h"  // Needed here to get TARGET_ARCH_X64.
-#if defined(TARGET_ARCH_X64)
-
-#include "vm/ic_stubs.h"
-
-#include "vm/object.h"
-
-namespace dart {
-
-RawCode* ICStubs::GetICStub(const GrowableArray<const Class*>& classes,
-                            const GrowableArray<const Function*>& targets) {
-  UNIMPLEMENTED();
-  return Code::null();
-}
-
-
-bool ICStubs::RecognizeICStub(uword entry_point,
-                              GrowableArray<const Class*>* classes,
-                              GrowableArray<const Function*>* targets) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-int ICStubs::IndexOfClass(const GrowableArray<const Class*>& classes,
-                          const Class& cls) {
-  UNIMPLEMENTED();
-  return false;
-}
-
-
-void ICStubs::PatchTargets(uword ic_entry_point, uword from, uword to) {
-  UNIMPLEMENTED();
-}
-
-}  // namespace dart
-
-#endif  // defined TARGET_ARCH_X64