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

sdk/lib/core/errors.dart

Index: sdk/lib/core/errors.dart
===================================================================
--- sdk/lib/core/errors.dart	(revision 23480)
+++ sdk/lib/core/errors.dart	(working copy)
@@ -234,6 +234,13 @@
   String toString() => "Stack Overflow";
 }
 
+class FiftyThreeBitOverflowError implements Error {
+  final Object value;
+
+  const FiftyThreeBitOverflowError(this.value);
+  String toString() => "53-bit Overflow: $value";
+}
+
 /**
  * Error thrown when a runtime error occurs.
  */