Begins work on ARM64, first assembler test.

runtime/vm/unit_test.cc

Index: runtime/vm/unit_test.cc
===================================================================
--- runtime/vm/unit_test.cc	(revision 34648)
+++ runtime/vm/unit_test.cc	(working copy)
@@ -2,13 +2,14 @@
 // 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/unit_test.h"
+
 #include <stdio.h>
 
-#include "vm/unit_test.h"
-
 #include "bin/builtin.h"
 #include "bin/dartutils.h"
 
+#include "platform/globals.h"
 #include "vm/assembler.h"
 #include "vm/ast_printer.h"
 #include "vm/compiler.h"
@@ -25,7 +26,6 @@
 
 DECLARE_FLAG(bool, disassemble);
 
-
 TestCaseBase* TestCaseBase::first_ = NULL;
 TestCaseBase* TestCaseBase::tail_ = NULL;
 
@@ -48,6 +48,8 @@
   }
 }
 
+// TODO(zra): Remove when tests that need these functions are ready to enable.
+#if !defined(TARGET_ARCH_ARM64)
 
 static Dart_Handle LibraryTagHandler(Dart_LibraryTag tag,
                                      Dart_Handle library,
@@ -142,6 +144,7 @@
   return Api::Success();
 }
 
+#endif
 
 void AssemblerTest::Assemble() {
   const String& function_name = String::ZoneHandle(Symbols::New(name_));
@@ -166,6 +169,9 @@
 }
 
 
+// TODO(zra): Remove once supported.
+#if !defined(TARGET_ARCH_ARM64)
+
 CodeGenTest::CodeGenTest(const char* name)
   : function_(Function::ZoneHandle()),
     node_sequence_(new SequenceNode(Scanner::kNoSourcePos,
@@ -233,4 +239,6 @@
   return error.IsNull();
 }
 
+#endif  // !defined(TARGET_ARCH_ARM64)
+
 }  // namespace dart