Updating Angular version

third_party/pkg/angular/lib/tools/expression_extractor.dart

 library angular.tools.html_expression_extractor;
 
 import 'dart:io';
 import 'package:angular/tools/html_extractor.dart';
 import 'package:angular/tools/source_metadata_extractor.dart';
 import 'package:angular/tools/source_crawler_impl.dart';
 import 'package:angular/tools/io.dart';
 import 'package:angular/tools/io_impl.dart';
 import 'package:angular/tools/common.dart';
 
 import 'package:di/di.dart';
 import 'package:di/dynamic_injector.dart';
-import 'package:angular/core/parser/parser_library.dart';
-import 'package:angular/tools/parser_generator/dart_code_gen.dart';
+
+import 'package:angular/core/module.dart';
+import 'package:angular/core/parser/parser.dart';
 import 'package:angular/tools/parser_generator/generator.dart';
 
 main(args) {
   if (args.length < 5) {
     print('Usage: expression_extractor file_to_scan html_root header_file '
           'footer_file output [package_roots+]');
     exit(0);
   }
   IoService ioService = new IoServiceImpl();
 
   var packageRoots =
       (args.length < 6) ? [Platform.packageRoot] : args.sublist(5);
   var sourceCrawler = new SourceCrawlerImpl(packageRoots);
   var sourceMetadataExtractor = new SourceMetadataExtractor(sourceCrawler);
   List<DirectiveInfo> directives =
       sourceMetadataExtractor.gatherDirectiveInfo(args[0]);
   var htmlExtractor = new HtmlExpressionExtractor(directives, ioService);
   htmlExtractor.crawl(args[1]);
 
   var expressions = htmlExtractor.expressions;
   expressions.add('null');
 
   var headerFile = args[2];
   var footerFile = args[3];
   var outputFile = args[4];
-  SourcePrinter _prt;
+  SourcePrinter printer;
   if (outputFile == '--') {
-    _prt = new SourcePrinter();
+    printer = new SourcePrinter();
   } else {
-    _prt = new FileSourcePrinter(outputFile);
+    printer = new FileSourcePrinter(outputFile);
   }
 
   // Output the header file first.
   if (headerFile != '') {
-    _prt.printSrc(_readFile(headerFile));
+    printer.printSrc(_readFile(headerFile));
   }
 
-  _prt.printSrc('// Found ${expressions.length} expressions');
+  printer.printSrc('// Found ${expressions.length} expressions');
   Module module = new Module()
-    ..type(ParserBackend, implementedBy: DartCodeGen)
-    ..value(SourcePrinter, _prt);
+      ..type(Parser, implementedBy: DynamicParser)
+      ..type(ParserBackend, implementedBy: DynamicParserBackend)
+      ..type(FilterMap, implementedBy: NullFilterMap)
+      ..value(SourcePrinter, printer);
   Injector injector =
       new DynamicInjector(modules: [module], allowImplicitInjection: true);
 
   // Run the generator.
   injector.get(ParserGenerator).generateParser(htmlExtractor.expressions);
 
   // Output footer last.
   if (footerFile != '') {
-    _prt.printSrc(_readFile(footerFile));
+    printer.printSrc(_readFile(footerFile));
   }
 }
 
 String _readFile(String filePath) => new File(filePath).readAsStringSync();
 
 class FileSourcePrinter implements SourcePrinter {
   final File _file;
 
   FileSourcePrinter(String filePath)
       : _file = new File(filePath) {
     // clear file
     _file.writeAsStringSync('');
   }
 
   printSrc(src) => _file.writeAsStringSync('$src\n', mode: FileMode.APPEND);
 }