Adds a flag to the standalone vm to throw an exception on 53-bit integer overflow.

sdk/lib/core/errors.dart

 // 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.
 
 part of dart.core;
 
 class Error {
   const Error();
 
   /**
@@ skipping 216 matching lines @@
 class OutOfMemoryError implements Error {
   const OutOfMemoryError();
   String toString() => "Out of Memory";
 }
 
 class StackOverflowError implements Error {
   const StackOverflowError();
   String toString() => "Stack Overflow";
 }
 
+class FiftyThreeBitOverflowError implements Error {
+  final message;
+  const FiftyThreeBitOverflowError(this.message);
+  String toString() => "53 bit overflow: $message";
+}
+
 /**
  * Error thrown when a runtime error occurs.
  */
 class RuntimeError implements Error {
   final message;
   RuntimeError(this.message);
   String toString() => "RuntimeError: $message";
 }