message: Skip failing test on older versions of clang.
diff: @@ -221,6 +221,7 @@ class ReturnValueTestCase(TestBase):
  self.return_and_test_struct_value("return_base_class")
  self.return_and_test_struct_value("return_derived_class")
  + @skipIf(compiler="clang", compiler_version=['<', '7.0'])
  def return_and_test_struct_value(self, func_name):
  """Pass in the name of the function to return from - takes in value, returns value."""
  