Introduce a flag --limit-ints-to-64-bits in the VM in order to investigate the

runtime/vm/exceptions.h

Index: runtime/vm/exceptions.h
diff --git a/runtime/vm/exceptions.h b/runtime/vm/exceptions.h
index df4c44c4bd157f16374cdd7588f8862c3ef5aab3..77991533a4c3cec7929c40f3db40170b915dd08f 100644
--- a/runtime/vm/exceptions.h
+++ b/runtime/vm/exceptions.h
@@ -46,6 +46,7 @@ class Exceptions : AllStatic {
   enum ExceptionType {
     kNone,
     kRange,
+    kRangeMsg,
     kArgument,
     kArgumentValue,
     kNoSuchMethod,
@@ -74,6 +75,7 @@ class Exceptions : AllStatic {
                               const Integer& argument_value,
                               intptr_t expected_from,
                               intptr_t expected_to);
+  static void ThrowRangeErrorMsg(const char* msg);
   static void ThrowCompileTimeError(const LanguageError& error);
 
   // Returns a RawInstance if the exception is successfully created,