Update test.dart for detection output of machine formatted errors

tests/language/src/Prefix22NegativeTest.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.
 //
 // Unresolved symbols should be reported as an static type warnings.
 // In this variant of test we turn warnings into errors.
-// VMOptions=--fatal-type-errors --enable_type_checks
+// VMOptions= --enable_type_errors

[zundel, 2012/03/02 23:51:00]

reverted

 
 #library("Prefix21NegativeTest.dart");
 #import("library12.dart", prefix:"lib12");
 
 class myClass {
-  myClass(lib12.Library13 p) { // static type warning
+  myClass(lib12.Library13 p) { /// static type error
   }
 }
 
 main() {
   new myClass(null);
 }