Run the sorter to reduce code churn

pkg/analyzer/lib/src/dart/scanner/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 analyzer.src.dart.scanner.scanner;
 
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/error/listener.dart';
 import 'package:analyzer/src/dart/error/syntactic_errors.dart';
 import 'package:analyzer/src/dart/scanner/reader.dart';
@@ skipping 91 matching lines @@
 
   @override
   bool scanLazyAssignmentOperators = false;
 
   _Scanner2(
       this.source, this._contents, this._readerOffset, this._errorListener) {
     lineStarts.add(0);
   }
 
   @override
+  bool get hasUnmatchedGroups {
+    throw 'unsupported operation';
+  }
+
+  @override
+  set preserveComments(bool preserveComments) {
+    this._preserveComments = preserveComments;
+  }
+
+  @override
+  Token get tail {
+    throw 'unsupported operation';
+  }
+
+  @override
   void appendToken(Token token) {
     throw 'unsupported operation';
   }
 
   @override
   int bigSwitch(int next) {
     throw 'unsupported operation';
   }
 
-  @override
-  bool get hasUnmatchedGroups {
-    throw 'unsupported operation';
-  }
-
   @override
   void recordStartOfLine() {
     throw 'unsupported operation';
   }
 
   @override
   void reportError(
       ScannerErrorCode errorCode, int offset, List<Object> arguments) {
     _errorListener
         .onError(new AnalysisError(source, offset, 1, errorCode, arguments));
   }
 
   @override
   void setSourceStart(int line, int column) {
     int offset = _readerOffset;
     if (line < 1 || column < 1 || offset < 0 || (line + column - 2) >= offset) {
       return;
     }
     lineStarts.removeAt(0);
     for (int i = 2; i < line; i++) {
       lineStarts.add(1);
     }
     lineStarts.add(offset - column + 1);
   }
 
   @override
-  Token get tail {
-    throw 'unsupported operation';
-  }
-
-  @override
   Token tokenize() {
     fasta.ScannerResult result = fasta.scanString(_contents,
         includeComments: _preserveComments,
         scanGenericMethodComments: scanGenericMethodComments,
         scanLazyAssignmentOperators: scanLazyAssignmentOperators);
 
     // fasta pretends there is an additional line at EOF
     result.lineStarts.removeLast();
 
     // for compatibility, there is already a first entry in lineStarts
@@ skipping 11 matching lines @@
     // Update all token offsets based upon the reader's starting offset
     if (_readerOffset != -1) {
       final int delta = _readerOffset + 1;
       do {
         token.offset += delta;
         token = token.next;
       } while (!token.isEof);
     }
     return firstToken;
   }
-
-  @override
-  set preserveComments(bool preserveComments) {
-    this._preserveComments = preserveComments;
-  }
 }