:returns: A list of function matches that appear to be identical

def identical_functions(self):
        """
        :returns: A list of function matches that appear to be identical
        """
        identical_funcs = []
        for (func_a, func_b) in self.function_matches:
            if self.functions_probably_identical(func_a, func_b):
                identical_funcs.append((func_a, func_b))
        return identical_funcs