Rename analyzer-experimental to analyzer_experimental.

pkg/analyzer-experimental/example/scanner_driver.dart

-#!/usr/bin/env dart
-
-// Copyright (c) 2013, 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.
-
-import 'package:analyzer-experimental/src/generated/java_core.dart';
-import 'package:analyzer-experimental/src/generated/scanner.dart';
-
-import 'dart:io';
-
-main() {
-  
-  print('working dir ${new File('.').fullPathSync()}');
-  
-  var args = new Options().arguments;
-  if (args.length == 0) {
-    print('Usage: scanner_driver [files_to_scan]');
-    exit(0);
-  }
-  
-  for (var arg in args) {
-    _scan(new File(arg));
-  }
-  
-}
-
-_scan(File file) {
-  var src = file.readAsStringSync();
-  var scanner = new StringScanner(null, src, null);
-  var token = scanner.tokenize();
-  while (token.type != TokenType.EOF) {
-    print(token);
-    token = token.next;
-  }
-}