Updating crufty tests, remove invalid TryCatch8NegativeTest

tests/language/src/TryCatch2NegativeTest.dart

 // Copyright (c) 2011, 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.
 // Dart test program for testing try/catch statement without any exceptions
 // being thrown.
 // Negative test should fail compilation as there is a catch block without
 // a try.
 
 interface TestException {
   String getMessage();
 }
 
 class MyException implements TestException {
-  const MyException(String message = "") : message_ = message;
+  const MyException([String message = ""]) : message_ = message;
   String getMessage() { return message_; }
   final String message_;
 }
 
 class StackTrace {
   StackTrace() { }
 }
 
 class Helper {
   static int f1(int i) {
@@ skipping 20 matching lines @@
 
 class TryCatch2NegativeTest {
   static testMain() {
     Expect.equals(1, Helper.f1(1));
   }
 }
 
 main() {
   TryCatch2NegativeTest.testMain();
 }