Fixes for Windows and Mac builds after r25250.

src/string-stream.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/string-stream.h"
 
 #include "src/handles-inl.h"
 #include "src/prototype.h"
 
 namespace v8 {
@@ skipping 335 matching lines @@
           Put(' ');
         if (key->IsString()) {
           Put(String::cast(key));
         } else {
           key->ShortPrint();
         }
         Add(": ");
         FieldIndex index = FieldIndex::ForDescriptor(map, i);
         if (js_object->IsUnboxedDoubleField(index)) {
           double value = js_object->RawFastDoublePropertyAt(index);
-          Add("<unboxed double> %.16g\n", value);
+          Add("<unboxed double> %.16g\n", FmtElm(value));
         } else {
           Object* value = js_object->RawFastPropertyAt(index);
           Add("%o\n", value);
         }
       }
     }
   }
 }
 
 
@@ skipping 189 matching lines @@
   }
   MemCopy(new_space, space_, *bytes);
   *bytes = new_bytes;
   DeleteArray(space_);
   space_ = new_space;
   return new_space;
 }
 
 
 } }  // namespace v8::internal