Fix \r escaping in q3coder parser (#3809)

### 🛠 Summary


### 🧪 Checklist

- [ ] Unit tests added.
- [ ] The documentation updated.
- [ ] Change follows security best practices.
``

Author: atobiszei

src/llm/io_processing/qwen3coder/qwen3coder_tool_parser.cpp

@@ -141,14 +141,31 @@ static std::string escapeQuotes(const std::string& input) {
     }
     return output;
 }
-static std::string escapeNewline(const std::string& input) {
+static std::string escapeWithoutQuotes(const std::string& input) {
     std::string output;
     output.reserve(input.size());
     for (char c : input) {
         switch (c) {
         case '\n':
             output += "\\n";
             break;
+        case '\r':
+            output += "\\r";
+            break;
+            // escaping '/' is for now omitted as its creating issues in Continue
+
+        /*case '\\':
+            output += "\\\\";
+            break;*/
+        case '\b':
+            output += "\\b";
+            break;
+        case '\f':
+            output += "\\f";
+            break;
+        case '\t':
+            output += "\\t";
+            break;
         default:
             output += c;
         }
@@ -250,7 +267,7 @@ bool Qwen3CoderToolParserImpl::parseUntilStateChange(ToolCalls_t& toolCalls) {
             SPDLOG_DEBUG("Tool schema not found for tool: {}, leaving parameter: {} as string", this->currentFunction.name, this->currentParameterName);
         } else {
             // we don't want to escape entry/exit " for string parameters
-            parameterValue = escapeNewline(setCorrectValueType(parameterValue, this->currentParameterName, paramIt->second));
+            parameterValue = escapeWithoutQuotes(setCorrectValueType(parameterValue, this->currentParameterName, paramIt->second));
         }
         auto res = this->currentFunction.parameters.try_emplace(this->currentParameterName, parameterValue);
         if (!res.second)

src/test/llm/output_parsers/qwen3coder_output_parser_test.cpp

@@ -652,9 +652,9 @@ if __name__ == "__main__":
     addresses["Hodor"] = """The door"""
     addresses["Arya"] = "Winterfell"
     for name, address in addresses.items():
-        print(f'{name} lives at {address}')
+        print(f'\n\t{name} lives at {address}\n\r')
 </parameter></function></tool_call>)",
-            ov::genai::GenerationFinishReason::NONE, R"({"delta":{"tool_calls":[{"index":6,"function":{"arguments":"{\"arg1\": \"if __name__ == \\\"__main__\\\":\\n    addresses = {}\\n    addresses[\\\"Hodor\\\"] = \\\"\\\"\\\"The door\\\"\\\"\\\"\\n    addresses[\\\"Arya\\\"] = \\\"Winterfell\\\"\\n    for name, address in addresses.items():\\n        print(f'{name} lives at {address}')\"}"}}]}})"}};
+            ov::genai::GenerationFinishReason::NONE, R"({"delta":{"tool_calls":[{"index":6,"function":{"arguments":"{\"arg1\": \"if __name__ == \\\"__main__\\\":\\n    addresses = {}\\n    addresses[\\\"Hodor\\\"] = \\\"\\\"\\\"The door\\\"\\\"\\\"\\n    addresses[\\\"Arya\\\"] = \\\"Winterfell\\\"\\n    for name, address in addresses.items():\\n        print(f'\\n\\t{name} lives at {address}\\n\\r')\"}"}}]}})"}};
     for (const auto& [chunk, finishReason, expectedDelta] : chunkToDeltaVec) {
         i++;
         std::optional<rapidjson::Document> doc = outputParser->parseChunk(chunk, true, ov::genai::GenerationFinishReason::NONE);