fix: free demangled type names in single instance checker

Author: jingjing2222

packages/react-native-reanimated/Common/cpp/reanimated/Tools/SingleInstanceChecker.h

@@ -8,6 +8,7 @@
 
 #include <atomic>
 #include <cassert>
+#include <cstdlib>
 #include <string>
 
 #ifdef ANDROID
@@ -51,7 +52,10 @@ class SingleInstanceChecker {
 template <class T>
 SingleInstanceChecker<T>::SingleInstanceChecker() {
   int status = 0;
-  std::string className = __cxxabiv1::__cxa_demangle(typeid(T).name(), nullptr, nullptr, &status);
+  char *demangled = __cxxabiv1::__cxa_demangle(typeid(T).name(), nullptr, nullptr, &status);
+  std::string className =
+      (status == 0 && demangled != nullptr) ? demangled : typeid(T).name();
+  std::free(demangled);
 
   // React Native can spawn up to two instances of a Native Module at the same
   // time. This happens during a reload when a new instance of React Native is

packages/react-native-worklets/Common/cpp/worklets/Tools/SingleInstanceChecker.h

@@ -8,6 +8,7 @@
 
 #include <atomic>
 #include <cassert>
+#include <cstdlib>
 #include <iostream>
 #include <string>
 
@@ -50,7 +51,10 @@ class SingleInstanceChecker {
 template <class T>
 SingleInstanceChecker<T>::SingleInstanceChecker() {
   int status = 0;
-  std::string className = __cxxabiv1::__cxa_demangle(typeid(T).name(), nullptr, nullptr, &status);
+  char *demangled = __cxxabiv1::__cxa_demangle(typeid(T).name(), nullptr, nullptr, &status);
+  std::string className =
+      (status == 0 && demangled != nullptr) ? demangled : typeid(T).name();
+  std::free(demangled);
 
   // React Native can spawn up to two instances of a Native Module at the same
   // time. This happens during a reload when a new instance of React Native is