more work aligning fasta.Token with analyzer.Token

pkg/front_end/lib/src/fasta/scanner/abstract_scanner.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 fasta.scanner.abstract_scanner;
 
 import 'dart:collection' show ListMixin;
 
 import 'dart:typed_data' show Uint16List, Uint32List;
 
@@ skipping 849 matching lines @@
     if (!includeComments) return;
     Token newComment = createDartDocToken(type, start, asciiOnly);
     _appendToCommentStream(newComment);
   }
 
   /**
    * Append the given token to the [tail] of the current stream of tokens.
    */
   void appendToken(Token token) {
     tail.next = token;
-    tail.next.previousToken = tail;
+    tail.next.previous = tail;
     tail = tail.next;
     if (comments != null) {
       for (CommentToken c = comments; c != null; c = c.next) {
         c.parent = tail;
       }
-      tail.precedingCommentTokens = comments;
+      tail.precedingComments = comments;
       comments = null;
       commentsTail = null;
     }
   }
 
   void _appendToCommentStream(Token newComment) {
     if (comments == null) {
       comments = newComment;
       commentsTail = comments;
     } else {
       commentsTail.next = newComment;
-      commentsTail.next.previousToken = commentsTail;
+      commentsTail.next.previous = commentsTail;
       commentsTail = commentsTail.next;
     }
   }
 
   int tokenizeRawStringKeywordOrIdentifier(int next) {
     // [next] is $r.
     int nextnext = peek();
     if (identical(nextnext, $DQ) || identical(nextnext, $SQ)) {
       int start = scanOffset;
       next = advance();
@@ skipping 390 matching lines @@
       switchToUint32(newLength);
     }
   }
 
   void switchToUint32(int newLength) {
     final newArray = new Uint32List(newLength);
     newArray.setRange(0, arrayLength, array);
     array = newArray;
   }
 }