Change imports etc to new syntax.

utils/testrunner/pipeline_utils.dart

 // Copyright (c) 2012, 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.
 
+part of pipeline;
+
 List stdout, stderr, log;
 var replyPort;
 int _procId = 1;
 Map _procs = {};
 
 /**
  * Create a file path for a temporary file. The file will be in the
  * [tmpDir] directory, with name [basis], but with any extension
  * stripped and replaced by [suffix].
  */
@@ skipping 105 matching lines @@
   Process p = _procs.remove(id);
   p.kill();
 }
 
 /** Delete a file named [fname] if it exists. */
 bool cleanup(String fname) {
   if (fname != null && !config['keep-files']) {
     var f = new File(fname);
     try {
       if (f.existsSync()) {
+        logMessage('Removing $fname');
         f.deleteSync();
       }
     } catch (e) {
       return false;
     }
   }
   return true;
 }
 
 initPipeline(port) {
   replyPort = port;
   stdout = new List();
   stderr = new List();
   log = new List();
 }
 
 void completePipeline([exitCode = 0]) {
   replyPort.send([stdout, stderr, log, exitCode]);
 }
 
 /** Utility function to log diagnostic messages. */
 void logMessage(msg) => log.add(msg);