Change test language/const_factory_negative_test.dart into a multi-test

tests/language/const_factory_with_body_test.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.
 // For Dart VM: tests that a "const factory" with body produces an error.
 // For DartC: tests that a "const factory" is illegal.

[kustermann, 2013/09/04 14:22:25]

DartC -> dartanalyzer

 
-class ConstFactoryNegativeTest {
-  const factory ConstFactoryNegativeTest.one() {
-  }
+class ConstFactoryWithBody {
+  const factory ConstFactoryWithBody.one() { }  /// 01: compile-time error

[kustermann, 2013/09/04 14:22:25]

Maybe ", static type warning" if the analyzer is supposed to give a warning (you
also just CC scheglov@)

 }
 
 main() {
-  const ConstFactoryNegativeTest.one();
+  const ConstFactoryWithBody.one();  /// 01: continued
 }