Test262-es6 test runner should handle sloppy fail better

test/test262-es6/testcfg.py

Index: test/test262-es6/testcfg.py
diff --git a/test/test262-es6/testcfg.py b/test/test262-es6/testcfg.py
index e5fb22565fc80571704479591e6fdfa13271797a..cc0dc06bbc488745a9c74e01f2188be7708d7609 100644
--- a/test/test262-es6/testcfg.py
+++ b/test/test262-es6/testcfg.py
@@ -33,6 +33,7 @@ import sys
 import tarfile
 import imp
 
+from testrunner.local import statusfile
 from testrunner.local import testsuite
 from testrunner.local import utils
 from testrunner.objects import testcase
@@ -136,6 +137,13 @@ class Test262TestSuite(testsuite.TestSuite):
       return True
     return "FAILED!" in output.stdout
 
+  def HasUnexpectedOutput(self, testcase):
+    outcome = self.GetOutcome(testcase)
+    if (statusfile.FAIL_SLOPPY in testcase.outcomes and
+        "--use-strict" not in testcase.flags):
+      return outcome != statusfile.FAIL
+    return not outcome in (testcase.outcomes or [statusfile.PASS])
+
   def DownloadData(self):
     revision = TEST_262_ARCHIVE_REVISION
     archive_url = TEST_262_URL % revision