test rename overhaul: step 8 - language tests

tests/language/src/CompileTimeConstantGTest.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.
-
-class A {
-  final x = 4;
-  const A(this.x);
-  const A.named([this.x]);
-  const A.named2([this.x = 2]);
-  const A.named3();
-}
-
-class B extends A {
-  const B(x) : super(x + 10);
-  const B.named_() : super.named();
-  const B.named(x) : super.named(x + 10);
-  const B.named2_() : super.named2();
-  const B.named2(x) : super.named2(x + 10);
-  const B.named3() : super.named3();
-}
-
-final b1 = const B(0);
-final b2 = const B.named_();
-final b3 = const B.named(1);
-final b4 = const B.named2_();
-final b5 = const B.named2(3);
-final b6 = const B.named3();
-
-main() {
-  Expect.equals(10, b1.x);
-  Expect.equals(null, b2.x);
-  Expect.equals(11, b3.x);
-  Expect.equals(2, b4.x);
-  Expect.equals(13, b5.x);
-  Expect.equals(4, b6.x);
-}