Pass --noharmony-scoping to tests validating that we throw on 'const' in strict mode.

test/preparser/testcfg.py

 # Copyright 2011 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 16 matching lines @@
 
 
 import os
 import re
 
 from testrunner.local import testsuite
 from testrunner.local import utils
 from testrunner.objects import testcase
 
 
+FLAGS_PATTERN = re.compile(r"//\s+Flags:(.*)")
+INVALID_FLAGS = ["--enable-slow-asserts"]
+
+
 class PreparserTestSuite(testsuite.TestSuite):
   def __init__(self, name, root):
     super(PreparserTestSuite, self).__init__(name, root)
 
   def shell(self):
     return "d8"
 
   def _GetExpectations(self):
     expects_file = os.path.join(self.root, "preparser.expectation")
     expectations_map = {}
@@ skipping 50 matching lines @@
     filenames = [f[:-4] for f in os.listdir(self.root) if f.endswith(".pyt")]
     filenames.sort()
     for f in filenames:
       self._ParsePythonTestTemplates(result, f)
     return result
 
   def GetFlagsForTestCase(self, testcase, context):
     first = testcase.flags[0]
     if first != "-e":
       testcase.flags[0] = os.path.join(self.root, first)
+      source = self.GetSourceForTest(testcase)
+      result = []
+      flags_match = re.findall(FLAGS_PATTERN, source)
+      for match in flags_match:
+        result += match.strip().split()
+      result += context.mode_flags
+      result = [x for x in result if x not in INVALID_FLAGS]
+      result.append(os.path.join(self.root, testcase.path + ".js"))
+      return testcase.flags + result
     return testcase.flags
 
   def GetSourceForTest(self, testcase):
     if testcase.flags[0] == "-e":
       return testcase.flags[1]
     with open(testcase.flags[0]) as f:
       return f.read()
 
   def VariantFlags(self, testcase, default_flags):
     return [[]];
 
 
 def GetSuite(name, root):
   return PreparserTestSuite(name, root)