Use Windows line feeds in generated files on Windows.

GitOrigin-RevId: 53010ee7d1a3b88bedc3c0a5fd6914d31bb33c09

td/generate/tl_json_converter.cpp

@@ -209,7 +209,17 @@ void gen_json_converter_file(const tl::simple::Schema &schema, const std::string
 
   CHECK(!sb.is_error());
   buf.resize(sb.as_cslice().size());
+#if TD_WINDOWS
+  string new_file_content;
+  for (auto c : buf) {
+    if (c == '\n') {
+      new_file_content += '\r';
+    }
+    new_file_content += c;
+  }
+#else
   auto new_file_content = std::move(buf);
+#endif
   if (new_file_content != old_file_content.as_slice()) {
     write_file(file_name, new_file_content).ensure();
   }

tdtl/td/tl/tl_string_outputer.cpp

@@ -13,8 +13,19 @@ void tl_string_outputer::append(const std::string &str) {
   result += str;
 }
 
-const std::string &tl_string_outputer::get_result() const {
+std::string tl_string_outputer::get_result() const {
+#if defined(_WIN32)
+  std::string fixed_result;
+  for (std::size_t i = 0; i < result.size(); i++) {
+    if (result[i] == '\n') {
+      fixed_result += '\r';
+    }
+    fixed_result += result[i];
+  }
+  return fixed_result;
+#else
   return result;
+#endif
 }
 
 }  // namespace tl

tdtl/td/tl/tl_string_outputer.h

@@ -19,7 +19,7 @@ class tl_string_outputer : public tl_outputer {
  public:
   virtual void append(const std::string &str);
 
-  const std::string &get_result() const;
+  std::string get_result() const;
 };
 
 }  // namespace tl