Fix for return type to fix build.

pkg/analysis_server/test/reflective_tests.dart

 // Copyright (c) 2014, 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 reflective.tests;
 
 import 'dart:async';
 
 @MirrorsUsed(metaTargets: 'ReflectiveTestCase')
 import 'dart:mirrors';
@@ skipping 31 matching lines @@
   classMirror.instanceMembers.forEach((symbol, memberMirror) {
     // we need only methods
     if (memberMirror is! MethodMirror || !memberMirror.isRegularMethod) {
       return;
     }
     String memberName = MirrorSystem.getName(symbol);
     // test_
     if (memberName.startsWith('test_')) {
       String testName = memberName.substring('test_'.length);
       test(testName, () {
-        _runTest(classMirror, symbol);
+        return _runTest(classMirror, symbol);
       });
       return;
     }
     // solo_test_
     if (memberName.startsWith('solo_test_')) {
       String testName = memberName.substring('solo_test_'.length);
       solo_test(testName, () {
-        _runTest(classMirror, symbol);
+        return _runTest(classMirror, symbol);
       });
     }
   });
 }
 
-void _runTest(ClassMirror classMirror, Symbol symbol) {
+_runTest(ClassMirror classMirror, Symbol symbol) {
   InstanceMirror instanceMirror = classMirror.newInstance(new Symbol(''), []);
   _invokeSymbolIfExists(instanceMirror, #setUp);
   var testReturn = instanceMirror.invoke(symbol, []).reflectee;
   if (testReturn is Future) {
     return testReturn.whenComplete(() {
       _invokeSymbolIfExists(instanceMirror, #tearDown);
     });
   } else {
     _invokeSymbolIfExists(instanceMirror, #tearDown);
     return testReturn;
   }
 }
 
 
 void _invokeSymbolIfExists(InstanceMirror instanceMirror, Symbol symbol) {
   try {
     instanceMirror.invoke(symbol, []);
   } on NoSuchMethodError catch (e) {
   }
 }