More stubs and instructions for arm64.

runtime/vm/cha_test.cc

Index: runtime/vm/cha_test.cc
===================================================================
--- runtime/vm/cha_test.cc	(revision 35551)
+++ runtime/vm/cha_test.cc	(working copy)
@@ -2,10 +2,6 @@
 // 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.
 
-// TODO(zra): Remove when tests are ready to enable.
-#include "platform/globals.h"
-#if !defined(TARGET_ARCH_ARM64)
-
 #include "platform/assert.h"
 #include "vm/cha.h"
 #include "vm/class_finalizer.h"
@@ -131,5 +127,3 @@
 }
 
 }  // namespace dart
-
-#endif  // !defined(TARGET_ARCH_ARM64)