Fix typo 'Dettach' -> 'Detach'; restore explicit .str() for consistency

Agent-Logs-Url: https://github.com/Cpp2Rust/cpp2rust/sessions/67031e6a-ec2f-4f6c-a534-ac63f300898d

Co-authored-by: nunoplopes <2998477+nunoplopes@users.noreply.github.com>

Author: Copilot

cpp2rust/converter/mapper.cpp

@@ -549,7 +549,7 @@ std::string mapTypeStringRecursive(const std::string &cpp_type) {
 std::string normalizeTranslationRule(std::string rule) {
   static const std::array<std::pair<std::regex, std::string>, 2>
       normalization_rules{{
-          // Dettach pointer from double reference. Useful for matching
+          // Detach pointer from double reference. Useful for matching
           // translation rules.
           {std::regex(R"(\*\&\&)"), "* &&"},
           // Ignore constant template parameters, i.e. replace them with _.
@@ -568,7 +568,7 @@ static std::string synthesizeAnonRecordName(const clang::RecordDecl *record) {
   if (auto *parent =
           clang::dyn_cast<clang::RecordDecl>(record->getDeclContext())) {
     parent_name = parent->getIdentifier()
-                      ? std::string(parent->getIdentifier()->getName())
+                      ? parent->getIdentifier()->getName().str()
                       : synthesizeAnonRecordName(parent);
     parent_name += '_';
   }