Update checked in binary to version 0.5.19.0

tools/release/version.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.
 
 /**
  * This file contains functionality for getting dart version numbers using
  * our standard version construction method. Systems that does not include this
  * file should emulate the structure for revision numbers that we have here.
  *
  * The version number of a dart build is constructed as follows:
@@ skipping 131 matching lines @@
         } catch(e) {
           return 0;
         }
       }
     }
     return 0;
   }
 
   Future<int> getRevision() {
     if (repositoryType == RepositoryType.UNKNOWN) {
-      return new Future.immediate(0);
+      return new Future.value(0);
     }
     var isSvn = repositoryType == RepositoryType.SVN;
     var command = isSvn ? "svn" : "git";
     command = "$command${getExecutableSuffix()}";
     var arguments = isSvn ? ["info"] : ["svn", "info"];
-    ProcessOptions options = new ProcessOptions();
     // Run the command from the root to get the last changed revision for this
     // "branch". Since we have both trunk and bleeding edge in the same
     // repository and since we always build TOT we need this to get the
     // right version number.
     Path toolsDirectory = new Path(_versionFileName).directoryPath;
     Path root = toolsDirectory.join(new Path(".."));
-    options.workingDirectory = root.toNativePath();
-    return Process.run(command, arguments, options).then((result) {
+    var workingDirectory = root.toNativePath();
+    return Process.run(command,
+                       arguments,
+                       workingDirectory: workingDirectory).then((result) {
       if (result.exitCode != 0) {
         return 0;
       }
       return getRevisionFromSvnInfo(result.stdout);
     });
   }
 
   bool isProductionBuild(String username) {
     return username == "chrome-bot";
   }
@@ skipping 17 matching lines @@
     bool hasDirectory(path, name) {
       return new Directory.fromPath(path.append(name)).existsSync();
     }
     bool isFileSystemRoot(absolutePath) {
       if (isWindows) {
         return "${absolutePath.directoryPath}" == '/';
       }
       return "$absolutePath" == '/';
     }
 
-    var currentPath = new Path(new Directory.current().path);
+    var currentPath = new Path(Directory.current.path);
     while (true) {
       if (hasDirectory(currentPath, '.svn')) {
         return RepositoryType.SVN;
       } else if (hasDirectory(currentPath, '.git')) {
         return RepositoryType.GIT;
       }
       if (isFileSystemRoot(currentPath)) {
         break;
       }
       currentPath = currentPath.directoryPath;
@@ skipping 12 matching lines @@
   static RepositoryType guessType() {
     if (new Directory(".svn").existsSync()) return RepositoryType.SVN;
     if (new Directory(".git").existsSync()) return RepositoryType.GIT;
     return RepositoryType.UNKNOWN;
   }
 
   String toString() => name;
 
   final String name;
 }