Initial work on refactorings.

pkg/analysis_services/test/correction/source_range_test.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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library test.services.correction.source_range;
 
 import 'package:analysis_services/src/correction/source_range.dart';
 import 'package:analysis_testing/abstract_single_unit.dart';
 import 'package:analysis_testing/reflective_tests.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/generated/parser.dart';
 import 'package:analyzer/src/generated/source.dart';
-import 'package:unittest/unittest.dart' hide isEmpty;
+import 'package:unittest/unittest.dart';
 
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(SourceRangesTest);
 }
 
 
 @ReflectiveTestCase()
 class SourceRangesTest extends AbstractSingleUnitTest {
@@ skipping 83 matching lines @@
     expect(rangeStartStart(mainName, mainBody), new SourceRange(0, 7));
   }
 
   void test_rangeToken() {
     resolveTestUnit(' main() {}');
     FunctionDeclaration mainFunction = testUnit.declarations[0];
     SimpleIdentifier mainName = mainFunction.name;
     expect(rangeToken(mainName.beginToken), new SourceRange(1, 4));
   }
 }