Add a LoadSuite class.

test/runner/browser/compiler_pool_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.
-
-@TestOn("vm")
-
-import 'dart:io';
-
-import 'package:path/path.dart' as p;
-import 'package:test/src/util/io.dart';
-import 'package:test/test.dart';
-
-import '../../io.dart';
-
-String _sandbox;
-
-void main() {
-  setUp(() {
-    _sandbox = createTempDir();
-  });
-
-  tearDown(() {
-    new Directory(_sandbox).deleteSync(recursive: true);
-  });
-
-  test("doesn't intermingle warnings", () {
-    // These files need trailing newlines to work around issue 22667.
-    var testPath1 = p.join(_sandbox, "test1.dart");
-    new File(testPath1).writeAsStringSync("String main() => 12;\n");
-
-    var testPath2 = p.join(_sandbox, "test2.dart");
-    new File(testPath2).writeAsStringSync("int main() => 'foo';\n");
-
-    var result = _runTest(["-p", "chrome", "test1.dart", "test2.dart"]);
-    expect(result.stdout, startsWith("""
-Compiling test1.dart...
-test1.dart:1:18:
-Warning: 'int' is not assignable to 'String'.
-String main() => 12;
-                 ^^
-Compiling test2.dart...
-test2.dart:1:15:
-Warning: 'String' is not assignable to 'int'.
-int main() => 'foo';
-              ^^^^^
-"""));
-    expect(result.exitCode, equals(1));
-  });
-
-  test("uses colors if the test runner uses colors", () {
-    var testPath = p.join(_sandbox, "test.dart");
-    new File(testPath).writeAsStringSync("String main() => 12;\n");
-
-    var result = _runTest(["--color", "-p", "chrome", "test.dart"]);
-    expect(result.stdout, contains('\u001b[35m'));
-    expect(result.exitCode, equals(1));
-  });
-}
-
-ProcessResult _runTest(List<String> args) =>
-    runTest(args, workingDirectory: _sandbox);