sync with new API

Author: charles-zablit

lldb/source/Plugins/LanguageRuntime/Swift/SwiftLanguageRuntimeNames.cpp

@@ -876,10 +876,9 @@ SwiftLanguageRuntime::DemangleSymbolAsString(llvm::StringRef symbol,
   }
   if (tracking) {
     TrackingNodePrinter printer = TrackingNodePrinter(options);
-    std::string demangled =
-        swift::Demangle::demangleSymbolAsString(symbol, options, &printer);
+    swift::Demangle::demangleSymbolAsString(symbol, &printer);
     return std::pair<std::string, std::optional<DemangledNameInfo>>(
-        demangled, printer.takeInfo());
+        printer.takeString(), printer.takeInfo());
   }
   return std::pair<std::string, std::optional<DemangledNameInfo>>(
       swift::Demangle::demangleSymbolAsString(symbol, options), std::nullopt);

lldb/unittests/Core/SwiftDemanglingPartsTest.cpp

@@ -1234,8 +1234,8 @@ TEST_P(SwiftDemanglingPartsTestFixture, SwiftDemanglingParts) {
 
   TrackingNodePrinter printer =
       TrackingNodePrinter(swift::Demangle::DemangleOptions());
-  std::string demangled = swift::Demangle::demangleSymbolAsString(
-      std::string(mangled), swift::Demangle::DemangleOptions(), &printer);
+  swift::Demangle::demangleSymbolAsString(std::string(mangled), &printer);
+  std::string demangled = printer.takeString();
   DemangledNameInfo nameInfo = printer.takeInfo();
   nameInfo.PrefixRange.second =
       std::min(info.BasenameRange.first, info.ArgumentsRange.first);