Updating crufty tests, remove invalid TryCatch8NegativeTest

tests/language/src/TryCatch5NegativeTest.dart

Index: tests/language/src/TryCatch5NegativeTest.dart
diff --git a/tests/language/src/TryCatch5NegativeTest.dart b/tests/language/src/TryCatch5NegativeTest.dart
index 4b385ee1a051c69fcca58427ca2c29ba6c59191d..6256689ccca0962507bc7880343e24545f5561f5 100644
--- a/tests/language/src/TryCatch5NegativeTest.dart
+++ b/tests/language/src/TryCatch5NegativeTest.dart
@@ -10,7 +10,7 @@ interface TestException {
 }
 
 class MyException implements TestException {
-  const MyException(String message = "") : message_ = message;
+  const MyException([String message = ""]) : message_ = message;
   String getMessage() { return message_; }
   final String message_;
 }
@@ -44,12 +44,6 @@ class Helper {
   }
 }
 
-class TryCatch5NegativeTest {
-  static testMain() {
-    Expect.equals(1, Helper.f1(1));
-  }
-}
-
 main() {
-  TryCatch5NegativeTest.testMain();
+  Expect.equals(1, Helper.f1(1));
 }