Get rid of minified tests.

test/unminified_test.dart

-// Copyright (c) 2015, 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.
-
-// This file is for matcher tests that rely on the names of various Dart types.
-// These tests will fail when run in minified dart2js, since the names will be
-// mangled. A version of this file that works in minified dart2js is in
-// matchers_minified_test.dart.
-
-import 'package:matcher/matcher.dart';
-import 'package:unittest/unittest.dart';
-
-import 'test_utils.dart';
-
-void main() {
-  group('Iterable Matchers', () {
-    test('isEmpty', () {
-      var d = new SimpleIterable(0);
-      var e = new SimpleIterable(1);
-      shouldPass(d, isEmpty);
-      shouldFail(e, isEmpty, "Expected: empty "
-          "Actual: SimpleIterable:[1]");
-    });
-
-    test('isNotEmpty', () {
-      var d = new SimpleIterable(0);
-      var e = new SimpleIterable(1);
-      shouldPass(e, isNotEmpty);
-      shouldFail(d, isNotEmpty, "Expected: non-empty "
-          "Actual: SimpleIterable:[]");
-    });
-
-    test('contains', () {
-      var d = new SimpleIterable(3);
-      shouldPass(d, contains(2));
-      shouldFail(d, contains(5), "Expected: contains <5> "
-          "Actual: SimpleIterable:[3, 2, 1]");
-    });
-  });
-
-  group('Feature Matchers', () {
-    test("Feature Matcher", () {
-      var w = new Widget();
-      w.price = 10;
-      shouldPass(w, new HasPrice(10));
-      shouldPass(w, new HasPrice(greaterThan(0)));
-      shouldFail(w, new HasPrice(greaterThan(10)),
-          "Expected: Widget with a price that is a value greater than <10> "
-          "Actual: <Instance of 'Widget'> "
-          "Which: has price with value <10> which is not "
-          "a value greater than <10>");
-    });
-  });
-}