[Turbofan] Add Simd128 registers to RegisterConfiguration.

test/unittests/compiler/instruction-sequence-unittest.cc

Index: test/unittests/compiler/instruction-sequence-unittest.cc
diff --git a/test/unittests/compiler/instruction-sequence-unittest.cc b/test/unittests/compiler/instruction-sequence-unittest.cc
index 619e0aa4887aaad8e5df084b722452bc471c5079..121163226d6da6f1da579f6db8fbd2a9b7c3fb19 100644
--- a/test/unittests/compiler/instruction-sequence-unittest.cc
+++ b/test/unittests/compiler/instruction-sequence-unittest.cc
@@ -72,7 +72,8 @@ RegisterConfiguration* InstructionSequenceTest::config() {
                           : RegisterConfiguration::COMBINE,
         general_register_names_,
         double_register_names_,  // float register names
-        double_register_names_));
+        double_register_names_,
+        double_register_names_));  // SIMD 128 register names
   }
   return config_.get();
 }