Update some files from CRLF to LF

pkg/compiler/lib/src/io/line_column_provider.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.
 
 library dart2js.io.line_column;
 
 import 'code_output.dart';
 
 /// Interface for providing line/column information.
 abstract class LineColumnProvider {
@@ skipping 57 matching lines @@
   @override
   void onDone(int length) {
     lineStarts.add(length + 1);
     this.length = length;
   }
 
   String toString() {
     return 'lineStarts=$lineStarts,length=$length';
   }
 }