Fix JSON tests, re-enable in all cases - 2nd try

tests/standalone/io/status_file_parser_test.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.
 
 library StatusFileParserTest;
 
 import "package:expect/expect.dart";
 import "dart:io";
 import "../../../tools/testing/dart/status_file_parser.dart";
 import "../../../tools/testing/dart/utils.dart";
 
 
 void main() {
   TestReadStatusFile("runtime/tests/vm/vm.status");
   TestReadStatusFile("samples/tests/samples/samples.status");
   TestReadStatusFile("tests/co19/co19-compiler.status");
   TestReadStatusFile("tests/co19/co19-runtime.status");
   TestReadStatusFile("tests/corelib/corelib.status");
   TestReadStatusFile("tests/dom/dom.status");
   TestReadStatusFile("tests/html/html.status");
   TestReadStatusFile("tests/isolate/isolate.status");
-  TestReadStatusFile("tests/json/json.status");
   TestReadStatusFile("tests/language/language.status");
   TestReadStatusFile("tests/standalone/standalone.status");
 }
 
 String fixedFilePath(String filePath) {
   if (new File(filePath).existsSync()) {
     return filePath;
   } else {
     return "../${filePath}";
   }
 }
 
 void TestReadStatusFile(String filePath) {
   File file = new File(fixedFilePath(filePath));
   if (file.existsSync()) {
     List<Section> sections = new List<Section>();
     ReadConfigurationInto(new Path(file.path), sections, () {
       Expect.isTrue(sections.length > 0);
     });
   }
 }