[test] Allow command-line flags to be turned on per test262 test

test/test262/testcfg.py

Index: test/test262/testcfg.py
diff --git a/test/test262/testcfg.py b/test/test262/testcfg.py
index d8123968fca0578e35855b0192e580944322656f..0f226a4147c445cc5136abe747c5429e83440e6a 100644
--- a/test/test262/testcfg.py
+++ b/test/test262/testcfg.py
@@ -131,7 +131,7 @@ class Test262TestSuite(testsuite.TestSuite):
 
   def GetFlagsForTestCase(self, testcase, context):
     return (testcase.flags + context.mode_flags + self.harness +
-            self.GetIncludesForTest(testcase) + ["--harmony"] +
+            self.GetIncludesForTest(testcase) +
             (["--module"] if "module" in self.GetTestRecord(testcase) else []) +
             [os.path.join(self.testroot, testcase.path + ".js")] +
             (["--throws"] if "negative" in self.GetTestRecord(testcase)
@@ -139,7 +139,8 @@ class Test262TestSuite(testsuite.TestSuite):
             (["--allow-natives-syntax"]
              if "detachArrayBuffer.js" in
                 self.GetTestRecord(testcase).get("includes", [])
-             else []))
+             else []) +
+            ([flag for flag in testcase.outcomes if flag.startswith("--")]))

[Michael Achenbach, 2017/01/05 13:34:42]

Maybe add an access method for this in testcase. Also for the case below, i.e.
one method for getting flag outcomes and one for non-flag outcomes. Storing it
in outcomes is a neat trick to reuse the status-file logic.

[Dan Ehrenberg, 2017/01/05 15:36:11]

I'm a little reluctant to go and touch testcase, when currently, this patch is
test262-only logic. I like your idea of thinking of this as a testing ground; if
this is extended to other test suites, I'll do refactoring cleanups like that.

 
   def _VariantGeneratorFactory(self):
     return Test262VariantGenerator
@@ -205,7 +206,9 @@ class Test262TestSuite(testsuite.TestSuite):
     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])
+    return not outcome in ([outcome for outcome in testcase.outcomes
+                                    if not outcome.startswith('--')]
+                           or [statusfile.PASS])
 
   def PrepareSources(self):
     # The archive is created only on swarming. Local checkouts have the