Update lldb/source/Core/Mangled.cpp

Co-authored-by: Michael Buch <[email protected]>

Author: charles-zablit

lldb/source/Core/Mangled.cpp

@@ -353,10 +353,8 @@ ConstString Mangled::GetDemangledNameImpl(bool force, // BEGIN SWIFT
     const char *mangled_name = m_mangled.GetCString();
     Log *log = GetLog(LLDBLog::Demangle);
     LLDB_LOGF(log, "demangle swift: %s", mangled_name);
-    auto demangled_data = SwiftLanguageRuntime::TrackedDemangleSymbolAsString(
+    auto [demangled, info] = SwiftLanguageRuntime::TrackedDemangleSymbolAsString(
         mangled_name, SwiftLanguageRuntime::eSimplified, sc);
-    std::string demangled = demangled_data.first;
-    DemangledNameInfo info = demangled_data.second;
     info.PrefixRange.second =
         std::min(info.BasenameRange.first, info.ArgumentsRange.first);
     info.SuffixRange.first =