[date] Add ICU backend for timezone info behind a flag

test/mjsunit/testcfg.py

 # Copyright 2008 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 15 matching lines @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import os
 import re
 
 from testrunner.local import testsuite
 from testrunner.objects import testcase
 
 FLAGS_PATTERN = re.compile(r"//\s+Flags:(.*)")
 FILES_PATTERN = re.compile(r"//\s+Files:(.*)")
+ENV_PATTERN = re.compile(r"//\s+Environment Variables:(.*)")
 SELF_SCRIPT_PATTERN = re.compile(r"//\s+Env: TEST_FILE_NAME")
 MODULE_PATTERN = re.compile(r"^// MODULE$", flags=re.MULTILINE)
 NO_HARNESS_PATTERN = re.compile(r"^// NO HARNESS$", flags=re.MULTILINE)
 
 
 class MjsunitTestSuite(testsuite.TestSuite):
 
   def __init__(self, name, root):
     super(MjsunitTestSuite, self).__init__(name, root)
 
@@ skipping 41 matching lines @@
 
     if MODULE_PATTERN.search(source):
       files.append("--module")
     files.append(testfilename)
 
     flags += files
     if context.isolates:
       flags.append("--isolate")
       flags += files
 
+    env_match = ENV_PATTERN.search(source)
+    if env_match:
+      for env_pair in env_match.group(1).strip().split():
+        var, value = env_pair.split('=')
+        testcase.env[var] = value
+
     return testcase.flags + flags
 
   def GetSourceForTest(self, testcase):
     filename = os.path.join(self.root, testcase.path + self.suffix())
     with open(filename) as f:
       return f.read()
 
 
 def GetSuite(name, root):
   return MjsunitTestSuite(name, root)