Add missing file to last changelist, for NaN Dates.

Review URL: http://codereview.chromium.org/159700

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2602 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/runtime.cc

@@ -4920,7 +4920,7 @@ static Object* Runtime_DateLocalTimezone(Arguments args) {
   ASSERT(args.length() == 1);
 
   CONVERT_DOUBLE_CHECKED(x, args[0]);
-  char* zone = OS::LocalTimezone(x);
+  const char* zone = OS::LocalTimezone(x);
   return Heap::AllocateStringFromUtf8(CStrVector(zone));
 }