Remove public int.is64Bit.

runtime/lib/growable_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/assembler.h"
 #include "vm/bootstrap_natives.h"
 #include "vm/exceptions.h"
 #include "vm/native_entry.h"
@@ skipping 77 matching lines @@
   return Object::null();
 }
 
 
 DEFINE_NATIVE_ENTRY(Internal_makeListFixedLength, 1) {
   GET_NON_NULL_NATIVE_ARGUMENT(GrowableObjectArray, array,
                                arguments->NativeArgAt(0));
   return Array::MakeArray(array);
 }
 
+
 DEFINE_NATIVE_ENTRY(Internal_makeFixedListUnmodifiable, 1) {
   GET_NON_NULL_NATIVE_ARGUMENT(Array, array, arguments->NativeArgAt(0));
   array.MakeImmutable();
   return array.raw();
 }
 
 }  // namespace dart