Extract file name, line number, and warning text as groups (1,2,3)
        of warningPattern match.

def warnExtractFromRegexpGroups(self, line, match):
        """
        Extract file name, line number, and warning text as groups (1,2,3)
        of warningPattern match."""
        file = match.group(1)
        lineNo = match.group(2)
        if lineNo is not None:
            lineNo = int(lineNo)
        text = match.group(3)
        return (file, lineNo, text)