Merge V8 5.3.332.45.  DO NOT MERGE

Test: Manual

FPIIM-449

Change-Id: Id3254828b068abdea3cb10442e0172a8c9a98e03
(cherry picked from commit 13e2dadd00298019ed862f2b2fc5068bba730bcf)
diff --git a/test/unittests/compiler/instruction-sequence-unittest.cc b/test/unittests/compiler/instruction-sequence-unittest.cc
index 9360ca4..619e0aa 100644
--- a/test/unittests/compiler/instruction-sequence-unittest.cc
+++ b/test/unittests/compiler/instruction-sequence-unittest.cc
@@ -67,8 +67,11 @@
   if (config_.is_empty()) {
     config_.Reset(new RegisterConfiguration(
         num_general_registers_, num_double_registers_, num_general_registers_,
-        num_double_registers_, num_double_registers_, allocatable_codes,
-        allocatable_double_codes, general_register_names_,
+        num_double_registers_, allocatable_codes, allocatable_double_codes,
+        kSimpleFPAliasing ? RegisterConfiguration::OVERLAP
+                          : RegisterConfiguration::COMBINE,
+        general_register_names_,
+        double_register_names_,  // float register names
         double_register_names_));
   }
   return config_.get();