Update tests/test-chat-parser.cpp

Co-authored-by: Sigbjørn Skjæret <[email protected]>

Author: createthis

tests/test-chat-parser.cpp

@@ -248,7 +248,7 @@ static void test_deepseek_v3_1_tool_calls() {
             /* .thinking_forced_open = */ true,
             /* .parse_tool_calls = */ true,
         };
-        const char* variant = "fenced_thinking";
+        const std::string variant("fenced_thinking");
         const std::string in = "REASONING</think><｜tool▁calls▁begin｜><｜tool▁call▁begin｜>function<｜tool▁sep｜>get_time\n```json\n{\"city\": \"Tokyo\"}\n```<｜tool▁call▁end｜><｜tool▁calls▁end｜>";
         auto m = common_chat_parse(in, false, syntax);
         assert_equals<std::size_t>(variant, 1, m.tool_calls.size());