Clean up package imports and library names

pkg/analyzer/lib/src/generated/scanner.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.
 
-library engine.scanner;
+library analyzer.src.generated.scanner;
 
 import 'dart:collection';
 
-import 'error.dart';
-import 'java_engine.dart';
-import 'source.dart';
+import 'package:analyzer/src/generated/error.dart';
+import 'package:analyzer/src/generated/java_engine.dart';
+import 'package:analyzer/src/generated/source.dart';
 
 /**
  * The opening half of a grouping pair of tokens. This is used for curly
  * brackets ('{'), parentheses ('('), and square brackets ('[').
  */
 class BeginToken extends Token {
   /**
    * The token that corresponds to this token.
    */
   Token endToken;
@@ skipping 217 matching lines @@
    * Initialize a newly created token to represent a token of the given [type]
    * with the given [value] at the given [offset].
    */
   CommentToken(TokenType type, String value, int offset)
       : super(type, value, offset);
 
   @override
   CommentToken copy() => new CommentToken(type, _value, offset);
 }
 
-
 /**
  * A documentation comment token.
  */
 class DocumentationCommentToken extends CommentToken {
   /**
    * The references embedded within the documentation comment.
    * This list will be empty unless this is a documentation comment that has
    * references embedded within it.
    */
   final List<Token> references = <Token>[];
@@ skipping 2440 matching lines @@
   CommentToken get precedingComments => _precedingComment;
 
   void set precedingComments(CommentToken comment) {
     _precedingComment = comment;
     _setCommentParent(_precedingComment);
   }
 
   @override
   Token copy() => new TokenWithComment(type, offset, precedingComments);
 }