Revert "Parts must start with 'part of'" and "Attempt to fix VM build"

dart/pkg/dartdoc/lib/src/dartdoc/comment_map.dart

-part of dartdoc;
-
 // 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.
 
 /**
  * The cached lookup-table to associate doc comments with spans. The outer map
  * is from filenames to doc comments in that file. The inner map maps from the
  * token positions to doc comments. Each position is the starting offset of the
  * next non-comment token *following* the doc comment. For example, the position
  * for this comment would be the position of the "class" token below.
@@ skipping 107 matching lines @@
         line = line.substring(1);
       }
 
       buf.add(line);
       buf.add('\n');
     }
 
     return buf.toString();
   }
 }