[test] Process to locally develop and upstream test262 tests

test/test262/list.py

 #!/usr/bin/env python
 # Copyright 2016 the V8 project authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 import sys
 import tarfile
 from itertools import chain
 
 os.chdir(os.path.dirname(os.path.abspath(__file__)))
 
-for root, dirs, files in chain(os.walk("data"), os.walk("harness")):
+for root, dirs, files in chain(os.walk("data"), os.walk("harness"),
+                               os.walk("local-tests")):
   dirs[:] = [d for d in dirs if not d.endswith('.git')]
   for name in files:
     # These names are for gyp, which expects slashes on all platforms.
     pathname = '/'.join(root.split(os.sep) + [name])
     # For gyp, quote the name in case it includes spaces
     if len(sys.argv) > 1 and sys.argv[1] == '--quoted':
       pathname = '"' + pathname + '"'
     print(pathname)