Return a list of chunks of comments.

def chunkComment(self, text, start=0):
        """Return a list of chunks of comments.

        """

        # Build a list of comments
        comm, out = self.nextComment(text, start), []
        while comm:
            out.append(comm.group(0))
            comm = self.nextComment(text, comm.start(0) + 1)

        # Collect the comments according to whether they are line
        # comments or block comments.
        out = [list(g) for (_, g) in groupby(out, self.isLineComment)]

        # Filter out seperator lines.
        out = [i for i in out if i != ['']]

        return out