MIPS: Fix NaN value inconsistency with snapshots (alternate implementation).

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 625cc56727d72e9ad3f418fe5dce575c560613f9..418f882631928c38a7f757cb7ca432495a2e6e11 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -1873,6 +1873,13 @@ bool Isolate::Init(Deserializer* des) {
   // Deserializing may put strange things in the root array's copy of the
   // stack guard.
   heap_.SetStackLimits();
+#ifdef __mips__
+  // Reset NaN value which is incorrect for MIPS when snapshot is generated
+  // on simulator.
+  if(des != NULL) {
+    heap_.nan_value()->set_value(OS::nan_value());
+  }
+#endif
 
   deoptimizer_data_ = new DeoptimizerData;
   runtime_profiler_ = new RuntimeProfiler(this);