Enforce LF line endings in the git database.

tests/compiler/dart2js/mirror_system_helper.dart

 // Copyright (c) 2013, 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 mirror_system_helper;
 
 import 'dart:async';
 import 'package:compiler/src/mirrors/source_mirrors.dart';
 import 'package:compiler/src/mirrors/dart2js_mirrors.dart';
 import 'mock_compiler.dart';
@@ skipping 119 matching lines @@
   if (expected.length != types.length) return false;
   Iterator<TypeMirror> expectedIterator = expected.iterator;
   Iterator<TypeMirror> typesIterator = types.iterator;
   while (expectedIterator.moveNext() && typesIterator.moveNext()) {
     if (!check(expectedIterator.current, typesIterator.current)) {
       return false;
     }
   }
   return true;
 }