Fix OptionParser test on Windows.

tdutils/td/utils/OptionParser.cpp

@@ -91,6 +91,10 @@ Result<vector<char *>> OptionParser::run(int argc, char *argv[], int expected_no
 #endif
 #endif
 
+  return run_impl(argc, argv, expected_non_option_count);
+}
+
+Result<vector<char *>> OptionParser::run_impl(int argc, char *argv[], int expected_non_option_count) {
   std::unordered_map<char, const Option *> short_options;
   std::unordered_map<string, const Option *> long_options;
   for (auto &opt : options_) {

tdutils/td/utils/OptionParser.h

@@ -66,6 +66,9 @@ class OptionParser {
   // returns found non-option parameters
   Result<vector<char *>> run(int argc, char *argv[], int expected_non_option_count = -1) TD_WARN_UNUSED_RESULT;
 
+  // for testing only
+  Result<vector<char *>> run_impl(int argc, char *argv[], int expected_non_option_count) TD_WARN_UNUSED_RESULT;
+
   friend StringBuilder &operator<<(StringBuilder &sb, const OptionParser &o);
 
  private:

tdutils/test/OptionParser.cpp

@@ -23,7 +23,7 @@ TEST(OptionParser, run) {
     for (auto &arg : args) {
       argv.push_back(&arg[0]);
     }
-    return options.run(static_cast<int>(argv.size()), &argv[0]);
+    return options.run_impl(static_cast<int>(argv.size()), &argv[0], -1);
   };
 
   td::uint64 chosen_options = 0;