New bigint implementation in the vm.

runtime/lib/array.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 "platform/assert.h"
 #include "vm/bootstrap_natives.h"
 #include "vm/assembler.h"
-#include "vm/bigint_operations.h"
 #include "vm/exceptions.h"
 #include "vm/native_entry.h"
 #include "vm/object.h"
 
 namespace dart {
 
 DEFINE_NATIVE_ENTRY(List_allocate, 2) {
   // Implemented in FlowGraphBuilder::VisitNativeBody.
   UNREACHABLE();
   return Object::null();
@@ skipping 68 matching lines @@
   Object& temp = Object::Handle();
   for (intptr_t i = 0; i < length; i++) {
     temp = from_array.At(i + offset);
     result.SetAt(i, temp);
   }
   result.MakeImmutable();
   return result.raw();
 }
 
 }  // namespace dart