Make RegExp's constructor non-const.

utils/tests/pub/install/pub_install_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 pub_tests;
 
 import 'dart:io';
 
 import '../test_pub.dart';
 import '../../../../pkg/unittest/lib/unittest.dart';
 
 main() {
   group('requires', () {
     test('a pubspec', () {
       dir(appPath, []).scheduleCreate();
 
       schedulePub(args: ['install'],
-          error: const RegExp(r'^Could not find a file named "pubspec\.yaml"'),
+          error: new RegExp(r'^Could not find a file named "pubspec\.yaml"'),
           exitCode: 1);
 
       run();
     });
 
     test('a pubspec with a "name" key', () {
       dir(appPath, [
         pubspec({"dependencies": {"foo": null}})
       ]).scheduleCreate();
 
       schedulePub(args: ['install'],
-          error: const RegExp(r'^pubspec.yaml is missing the required "name" '
+          error: new RegExp(r'^pubspec.yaml is missing the required "name" '
               r'field \(e\.g\. "name: myapp"\)\.'),
           exitCode: 1);
 
       run();
     });
   });
 
   test('adds itself to the packages', () {
     // The symlink should use the name in the pubspec, not the name of the
     // directory.
     dir(appPath, [
       pubspec({"name": "myapp_name"}),
       libDir('foo'),
     ]).scheduleCreate();
 
     schedulePub(args: ['install'],
-        output: const RegExp(r"Dependencies installed!$"));
+        output: new RegExp(r"Dependencies installed!$"));
 
     dir(packagesPath, [
       dir("myapp_name", [
         file('foo.dart', 'main() => "foo";')
       ])
     ]).scheduleValidate();
 
     run();
   });
 
   test('does not adds itself to the packages if it has no "lib" directory', () {
     // The symlink should use the name in the pubspec, not the name of the
     // directory.
     dir(appPath, [
       pubspec({"name": "myapp_name"}),
     ]).scheduleCreate();
 
     schedulePub(args: ['install'],
-        output: const RegExp(r"Dependencies installed!$"));
+        output: new RegExp(r"Dependencies installed!$"));
 
     dir(packagesPath, [
       nothing("myapp_name")
     ]).scheduleValidate();
 
     run();
   });
 
   test('does not add a package if it does not have a "lib" directory', () {
     // Using an SDK source, but this should be true of all sources.
     dir(sdkPath, [
       file('revision', '1234'),
       dir('pkg', [
         dir('foo', [
           libPubspec('foo', '0.0.0-not.used')
         ])
       ])
     ]).scheduleCreate();
 
     dir(appPath, [
       pubspec({"name": "myapp", "dependencies": {"foo": {"sdk": "foo"}}})
     ]).scheduleCreate();
 
     schedulePub(args: ['install'],
-        error: const RegExp(r'Warning: Package "foo" does not have a "lib" '
+        error: new RegExp(r'Warning: Package "foo" does not have a "lib" '
             'directory.'),
-        output: const RegExp(r"Dependencies installed!$"));
+        output: new RegExp(r"Dependencies installed!$"));
 
     run();
   });
 
   test('does not warn if the root package lacks a "lib" directory', () {
     dir(appPath, [
       appPubspec([])
     ]).scheduleCreate();
 
     schedulePub(args: ['install'],
         error: '',
-        output: const RegExp(r"Dependencies installed!$"));
+        output: new RegExp(r"Dependencies installed!$"));
 
     run();
   });
 
   test('overwrites the existing packages directory', () {
     dir(appPath, [
       appPubspec([]),
       dir('packages', [
         dir('foo'),
         dir('myapp'),
       ]),
       libDir('myapp')
     ]).scheduleCreate();
 
     schedulePub(args: ['install'],
-        output: const RegExp(r"Dependencies installed!$"));
+        output: new RegExp(r"Dependencies installed!$"));
 
     dir(packagesPath, [
       nothing('foo'),
       dir('myapp', [file('myapp.dart', 'main() => "myapp";')])
     ]).scheduleValidate();
 
     run();
   });
 
   group('creates a packages directory in', () {
     test('"test/" and its subdirectories', () {
       dir(appPath, [
         appPubspec([]),
         libDir('foo'),
         dir("test", [dir("subtest")])
       ]).scheduleCreate();
 
       schedulePub(args: ['install'],
-          output: const RegExp(r"Dependencies installed!$"));
+          output: new RegExp(r"Dependencies installed!$"));
 
       dir(appPath, [
         dir("test", [
           dir("packages", [
             dir("myapp", [
               file('foo.dart', 'main() => "foo";')
             ])
           ]),
           dir("subtest", [
             dir("packages", [
               dir("myapp", [
                 file('foo.dart', 'main() => "foo";')
               ])
             ])
           ])
         ])
       ]).scheduleValidate();
 
       run();
     });
 
     test('"example/" and its subdirectories', () {
       dir(appPath, [
         appPubspec([]),
         libDir('foo'),
         dir("example", [dir("subexample")])
       ]).scheduleCreate();
 
       schedulePub(args: ['install'],
-          output: const RegExp(r"Dependencies installed!$"));
+          output: new RegExp(r"Dependencies installed!$"));
 
       dir(appPath, [
         dir("example", [
           dir("packages", [
             dir("myapp", [
               file('foo.dart', 'main() => "foo";')
             ])
           ]),
           dir("subexample", [
             dir("packages", [
               dir("myapp", [
                 file('foo.dart', 'main() => "foo";')
               ])
             ])
           ])
         ])
       ]).scheduleValidate();
 
       run();
     });
 
     test('"web/" and its subdirectories', () {
       dir(appPath, [
         appPubspec([]),
         libDir('foo'),
         dir("web", [dir("subweb")])
       ]).scheduleCreate();
 
       schedulePub(args: ['install'],
-          output: const RegExp(r"Dependencies installed!$"));
+          output: new RegExp(r"Dependencies installed!$"));
 
       dir(appPath, [
         dir("web", [
           dir("packages", [
             dir("myapp", [
               file('foo.dart', 'main() => "foo";')
             ])
           ]),
           dir("subweb", [
             dir("packages", [
               dir("myapp", [
                 file('foo.dart', 'main() => "foo";')
               ])
             ])
           ])
         ])
       ]).scheduleValidate();
 
       run();
     });
 
     test('"bin/"', () {
       dir(appPath, [
         appPubspec([]),
         libDir('foo'),
         dir("bin")
       ]).scheduleCreate();
 
       schedulePub(args: ['install'],
-          output: const RegExp(r"Dependencies installed!$"));
+          output: new RegExp(r"Dependencies installed!$"));
 
       dir(appPath, [
         dir("bin", [
           dir("packages", [
             dir("myapp", [
               file('foo.dart', 'main() => "foo";')
             ])
           ])
         ])
       ]).scheduleValidate();
 
       run();
     });
   });
 
   // TODO(rnystrom): Remove this when old layout support is removed. (#4964)
   test('shows a warning if the entrypoint uses the old layout', () {
     // The symlink should use the name in the pubspec, not the name of the
     // directory.
     dir(appPath, [
       pubspec({"name": "myapp_name"}),
       file("foo.dart", 'main() => "foo";'),
     ]).scheduleCreate();
 
     schedulePub(args: ['install'],
         error: '''
         Warning: Package "myapp_name" is using a deprecated layout.
         See http://www.dartlang.org/docs/pub-package-manager/package-layout.html for details.
         ''',
-        output: const RegExp(r"Dependencies installed!$"));
+        output: new RegExp(r"Dependencies installed!$"));
 
     run();
   });
 }