Add support for client/dartc compilation only tests.

runtime/bin/directory_impl.dart

 // Copyright (c) 2011, 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.
 
 
 class _DirectoryListingIsolate extends Isolate {
 
   _DirectoryListingIsolate() : super.heavy();
 
   void main() {
@@ skipping 18 matching lines @@
 }
 
 
 class _DirectoryCreateTempIsolate extends Isolate {
 
   _DirectoryCreateTempIsolate() : super.heavy();
 
   void main() {
     port.receive((path, replyTo) {
       // Call function to get file name
-      replyTo.send(_createTemp(path, (Math.random() * 0x8000000).toInt()));
+      replyTo.send(_Directory._createTemp(path, (Math.random() * 0x8000000).toInt()));
       port.close();
     });
   }
-
-  String _createTemp(String template, int num) native "Directory_CreateTemp";
 }
 
 
 class _Directory implements Directory {
 
   _Directory(String this._path);
 
+  static String _createTemp(String template, int num) native "Directory_CreateTemp";
+
   bool existsSync() {
     int exists = _exists(_path);
     if (exists < 0) {
       throw new DirectoryException("Diretory exists test failed: $_path");
     }
     return (exists == 1);
   }
 
   void createSync() {
     if (!_create(_path)) {
@@ skipping 11 matching lines @@
           }
         } else {
           if (_errorHandler !== null) {
             _errorHandler("Could not create temporary directory: $_path");
           }
         }
       });
     });
   }
 
+  void createTempSync() {
+    var result = _createTemp(path, (Math.random() * 0x8000000).toInt());
+    if (result != '') {
+      _path = result;
+    } else {
+      throw "createTempSync failed";
+    }
+  }
+
   void deleteSync() {
     if (!_delete(_path)) {
       throw new DirectoryException("Directory deletion failed: $_path");
     }
   }
 
   void list([bool recursive = false]) {
     new _DirectoryListingIsolate().spawn().then((port) {
       // Build a map of parameters to the directory listing isolate.
       Map listingParameters = new Map();
@@ skipping 90 matching lines @@
   bool _delete(String path) native "Directory_Delete";
 
   var _dirHandler;
   var _fileHandler;
   var _doneHandler;
   var _createTempHandler;
   var _errorHandler;
 
   String _path;
 }