Initialize typed array content for rempio2result during bootstrapping.

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 2c5e9a82a88fe575730ded75b7d1df4284b461f7..5af9d86a3f19f413a0318718a769737d6898d1c7 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1644,8 +1644,10 @@ void Genesis::InitializeBuiltinTypedArrays() {
 
   {  // Initialize a result array for rempio2 calculation
     const size_t num_elements = 2;
-    SetBuiltinTypedArray<double>(isolate(), builtins, kExternalFloat64Array,
-                                 NULL, num_elements, "rempio2result");
+    double* data =
+        SetBuiltinTypedArray<double>(isolate(), builtins, kExternalFloat64Array,
+                                     NULL, num_elements, "rempio2result");
+    for (size_t i = 0; i < num_elements; i++) data[i] = 0;
   }
 }