Split dart:builtin into dart:builtin and dart:io.

tools/testing/dart/status_file_parser.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.
 
 #library("status_file_parser");
 
-
+#import("dart:io");
 #import("status_expression.dart");
 
 // Possible outcomes of running a test.
 final CRASH = "crash";
 final TIMEOUT = "timeout";
 final FAIL = "fail";
 final PASS = "pass";
 // An indication to skip the test.  The caller is responsible for skipping it.
 final SKIP = "skip";
 final OK = "ok";
@@ skipping 225 matching lines @@
         }
         regExps[i] = regExp;
       }
       _keyToRegExps[key] = regExps;
     });
 
     _regExpCache = null;
     _preprocessed = true;
   }
 }