Handle co19 @dynamic-type-error better.

dart/tests/co19/testcfg.py

 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. 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
 from os.path import join, exists
 import re
 
 import test
 import utils
 
 
 class Error(Exception):
   pass
 
 
 class Co19TestCase(test.TestCase):
   def __init__(self, path, context, filename, mode, arch, component):
     super(Co19TestCase, self).__init__(context, path)
     self.filename = filename
     self.mode = mode
     self.arch = arch
     self.component = component
     self._is_negative = None
 
   def IsNegative(self):
     if self._is_negative is None :
       contents = self.GetSource()
-      for tag in ('@compile-error',
-                  # '@static-type-error',
-                  '@dynamic-type-error', '@runtime-error'):
-        if tag in contents:
-          self._is_negative = True
-          break
-      else :
+      if '@compile-error' in contents or '@runtime-error' in contents:
+        self._is_negative = True
+      elif '@dynamic-type-error' in contents:
+        self._is_negative = self.context.checked
+      else:
         self._is_negative = False
-
     return self._is_negative
 
   def GetLabel(self):
     return "%s%s %s %s" % (self.mode, self.arch, self.component,
                            "/".join(self.path))
 
   def GetCommand(self):
     # Parse the options by reading the .dart source file.
     source = self.GetSource()
     vm_options = utils.ParseTestOptions(test.VM_OPTIONS_PATTERN, source,
@@ skipping 99 matching lines @@
       patterns[idx : idx] = ['*'] * (len(file) - len(path))
       path = [test.Pattern(p) for p in patterns]
 
     for i in xrange(len(path)):
       if not path[i].match(file[i]):
         return False
     return True
 
 def GetConfiguration(context, root):
   return Co19TestConfiguration(context, root)