Mirrors overhaul.

dart/tests/compiler/dart2js/mirrors_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.
 
 import "package:expect/expect.dart";
 import "package:async_helper/async_helper.dart";
 import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors.dart';
 import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors_util.dart';
 import '../../../sdk/lib/_internal/compiler/implementation/mirrors/dart2js_mirror.dart';
 import '../../../sdk/lib/_internal/compiler/implementation/filenames.dart'
@@ skipping 53 matching lines @@
   var libraries = mirrors.libraries;
   Expect.isNotNull(libraries, "No libraries map returned");
   Expect.isFalse(libraries.isEmpty, "Empty libraries map returned");
 
   var helperLibrary = findMirror(libraries.values, "mirrors_helper");
   Expect.isNotNull(helperLibrary, "Library 'mirrors_helper' not found");
   Expect.stringEquals("mirrors_helper", helperLibrary.simpleName,
     "Unexpected library simple name");
   Expect.stringEquals("mirrors_helper", helperLibrary.qualifiedName,
     "Unexpected library qualified name");
-  Expect.equals(helperLibrary, mirrors.findLibrary('mirrors_helper').single);
+  Expect.equals(helperLibrary, mirrors.findLibrary('mirrors_helper'));
 
   var helperLibraryLocation = helperLibrary.location;
   Expect.isNotNull(helperLibraryLocation);
   Expect.equals(271, helperLibraryLocation.offset, "Unexpected offset");
   Expect.equals(23, helperLibraryLocation.length, "Unexpected length");
   Expect.equals(9, helperLibraryLocation.line, "Unexpected line");
   Expect.equals(1, helperLibraryLocation.column, "Unexpected column");
 
 
   var classes = helperLibrary.classes;
@@ skipping 941 matching lines @@
   Expect.isTrue(privateFactoryConstructor.isPrivate);
   Expect.isFalse(privateFactoryConstructor.isConstConstructor);
   Expect.isFalse(privateFactoryConstructor.isRedirectingConstructor);
   Expect.isFalse(privateFactoryConstructor.isGenerativeConstructor);
   Expect.isTrue(privateFactoryConstructor.isFactoryConstructor);
 
   var metadata = privateClass.metadata;
   Expect.isNotNull(metadata);
   Expect.equals(0, metadata.length);
 }