Remove uses of unittest in the HTML tests where possible.

pkg/dev_compiler/test/codegen/lib/html/typed_arrays_1_test.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.
 
-library TypedArrays1Test;
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_individual_config.dart';
 import 'dart:html';
 import 'dart:typed_data';
 
+import 'package:expect/minitest.dart';
+
 main() {
-  useHtmlIndividualConfiguration();
-
-  var isnumList = predicate((x) => x is List<num>, 'is a List<num>');
-  var isStringList = predicate((x) => x is List<String>, 'is a List<String>');
+  var isList = predicate((x) => x is List, 'is a List');
+  var isNumList = predicate((x) => x is List<num>, 'is a List<num>');
+  var isNotStringList =
+      predicate((x) => x is! List<String>, 'is not a List<String>');
   var expectation = Platform.supportsTypedData ? returnsNormally : throws;
 
   group('supported', () {
     test('supported', () {
       expect(Platform.supportsTypedData, true);
     });
   });
 
   group('arrays', () {
     test('createByLengthTest', () {
@@ skipping 30 matching lines @@
 
     // Generic type checking is not available in dart2js, so use this check to
     // see if we should check for it.
     var supportsTypeTest = !(new List<String>() is List<int>);
 
     if (supportsTypeTest) {
       test('typeTests', () {
         expect(() {
           var a = new Float32List(10);
           expect(a, isList);
-          expect(a, isnumList);
-          expect(a, isNot(isStringList));
+          expect(a, isNumList);
+          expect(a, isNotStringList);
         }, expectation);
       });
     }
   });
 }