test rename overhaul: step 8 - language tests

tests/language/src/DynamicFieldTest.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.
-//
-// Test that ensures that fields can be accessed dynamically.
-
-class A extends C {
-  var a;
-  var b;
-}
-
-class C {
-  foo() {
-    print(a); /// static type warning
-    return a; /// static type warning
-  }
-  bar() {
-    print(b.a); /// static type warning
-    return b.a; /// static type warning
-  }
-}
-
-main() {
-  var a = new A();
-  a.a = 1;
-  a.b = a;
-  Expect.equals(1, a.foo());
-  Expect.equals(1, a.bar());
-}