Fix bug - class methods appear in top level index

[ryanhoangt]

Hi, thanks for the awesome project!

PR description

When trying to test the context search API implementation, I observed that the methods defined in classes are also added into the top-level function index. Not sure if it is actually an issue.

('Found 2 methods with name `search_class` in file manager.py:\n'
 '\n'
 '- Search result 1:\n'
 '```\n'
 '<file>./search/manager.py</file>\n'
 ' <func>search_class</func>\n'
 '<code>\n'
 '    def search_class(self, class_name):\n'
 '        # initialize them to error case\n'
 "        summary = f'Class {class_name} did not appear in the codebase.'\n"
 "        tool_result = f'Could not find class {class_name} in the codebase.'\n"
 '\n'
 '        if class_name not in self.class_index:\n'
 '            return tool_result, summary, None\n'
 '\n'
 '        search_res: list[SearchResult] = []\n'
 '        for fname, _ in self.class_index[class_name]:\n'
 '            # there are some classes; we return their signatures\n'
 '            code = get_class_signature(fname, class_name)\n'
 '            res = SearchResult(fname, class_name, None, code)\n'
 '            search_res.append(res)\n'
 '\n'
 '        if not search_res:\n'
 '            # this should not happen, but just in case\n'
 '            return tool_result, summary, False\n'
 '\n'
 '        # the good path\n'
 '        # for all the searched result, append them and form the final '
 'result\n'
 "        tool_result = f'Found {len(search_res)} classes with name "
 "{class_name} in the codebase:\\n\\n'\n"
 '        if len(search_res) > RESULT_SHOW_LIMIT:\n'
 "            tool_result += 'They appeared in the following files:\\n'\n"
 '            tool_result += SearchResult.collapse_to_file_level(\n'
 '                search_res, self.project_path\n'
 '            )\n'
 '        else:\n'
 '            for idx, res in enumerate(search_res):\n'
 '                res_str = res.to_tagged_str(self.project_path)\n'
 "                tool_result += f'- Search result {idx + "
 "1}:\\n```\\n{res_str}\\n```\\n'\n"
 "        summary = f'The tool returned information about class "
 "`{class_name}`.'\n"
 '        return tool_result, summary, True\n'
 '\n'
 '</code>\n'
 '```\n'
 '- Search result 2:\n'
 '```\n'
 '<file>./search/manager.py</file>\n'
 '<class>SearchManager</class> <func>search_class</func>\n'
 '<code>\n'
 '    def search_class(self, class_name):\n'
 '        # initialize them to error case\n'
 "        summary = f'Class {class_name} did not appear in the codebase.'\n"
 "        tool_result = f'Could not find class {class_name} in the codebase.'\n"
 '\n'
 '        if class_name not in self.class_index:\n'
 '            return tool_result, summary, None\n'
 '\n'
 '        search_res: list[SearchResult] = []\n'
 '        for fname, _ in self.class_index[class_name]:\n'
 '            # there are some classes; we return their signatures\n'
 '            code = get_class_signature(fname, class_name)\n'
 '            res = SearchResult(fname, class_name, None, code)\n'
 '            search_res.append(res)\n'
 '\n'
 '        if not search_res:\n'
 '            # this should not happen, but just in case\n'
 '            return tool_result, summary, False\n'
 '\n'
 '        # the good path\n'
 '        # for all the searched result, append them and form the final '
 'result\n'
 "        tool_result = f'Found {len(search_res)} classes with name "
 "{class_name} in the codebase:\\n\\n'\n"
 '        if len(search_res) > RESULT_SHOW_LIMIT:\n'
 "            tool_result += 'They appeared in the following files:\\n'\n"
 '            tool_result += SearchResult.collapse_to_file_level(\n'
 '                search_res, self.project_path\n'
 '            )\n'
 '        else:\n'
 '            for idx, res in enumerate(search_res):\n'
 '                res_str = res.to_tagged_str(self.project_path)\n'
 "                tool_result += f'- Search result {idx + "
 "1}:\\n```\\n{res_str}\\n```\\n'\n"
 "        summary = f'The tool returned information about class "
 "`{class_name}`.'\n"
 '        return tool_result, summary, True\n'
 '\n'
 '</code>\n'
 '```\n',
 'Found 2 methods with name `search_class` in file manager.py:\n\n',
 True)

This PR attempts to fix it.

[Marti2203]

Hi!
I'm sorry for the delay - we looked over it and talked about the change, and it looks good!
Thanks for the contribution!