`LineInfo` line-end detection fixes.

pkg/analysis_server/test/integration/analysis/analysis_options_test.dart

-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// 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.
 
 library test.integration.analysis.analysis_options;
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../utils.dart';
@@ skipping 26 matching lines @@
     AnalysisError error = errors[0];
     expect(error.location.file, options);
     expect(error.severity, AnalysisErrorSeverity.WARNING);
     expect(error.type, AnalysisErrorType.STATIC_WARNING);
     expect(error.location.offset, 23);
     expect(error.location.length, 'camel_case_typo'.length);
     expect(error.location.startLine, 3);
     expect(error.location.startColumn, 7);
   }
 }