ARM: Make use of d16-d31 when available.

test/cctest/test-serialize.cc

 // Copyright 2007-2010 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 114 matching lines @@
 #ifdef ENABLE_DEBUGGER_SUPPORT
   CHECK_EQ(make_code(UNCLASSIFIED, 16),
            encoder.Encode(ExternalReference::debug_break(isolate).address()));
 #endif  // ENABLE_DEBUGGER_SUPPORT
   CHECK_EQ(make_code(UNCLASSIFIED, 10),
            encoder.Encode(
                ExternalReference::new_space_start(isolate).address()));
   CHECK_EQ(make_code(UNCLASSIFIED, 3),
            encoder.Encode(
                ExternalReference::roots_array_start(isolate).address()));
+  CHECK_EQ(make_code(UNCLASSIFIED, 52),
+           encoder.Encode(ExternalReference::cpu_features().address()));
 }
 
 
 TEST(ExternalReferenceDecoder) {
   Isolate* isolate = i::Isolate::Current();
   isolate->stats_table()->SetCounterFunction(counter_function);
   v8::V8::Initialize();
 
   ExternalReferenceDecoder decoder;
   CHECK_EQ(AddressOf(Builtins::kArrayCode),
@@ skipping 448 matching lines @@
 TEST(TestThatAlwaysFails) {
   bool ArtificialFailure = false;
   CHECK(ArtificialFailure);
 }
 
 
 DEPENDENT_TEST(DependentTestThatAlwaysFails, TestThatAlwaysSucceeds) {
   bool ArtificialFailure2 = false;
   CHECK(ArtificialFailure2);
 }