New bigint implementation in the vm.

runtime/lib/bool.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/bootstrap_natives.h"
 
 #include "include/dart_api.h"
-#include "vm/bigint_operations.h"
 #include "vm/dart_entry.h"
 #include "vm/dart_api_impl.h"
 #include "vm/exceptions.h"
 #include "vm/isolate.h"
 #include "vm/native_entry.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/symbols.h"
 
 namespace dart {
@@ skipping 19 matching lines @@
               String::New(Error::Cast(error).ToErrorCString())));
     } else if (!Dart_IsNull(result)) {
       Exceptions::ThrowArgumentError(
           String::Handle(String::New("Illegal environment value")));
     }
   }
   return default_value.raw();
 }
 
 }  // namespace dart