Pacify address sanitizer on windows

Author: isanych

src/google/protobuf/dynamic_message.cc

@@ -304,10 +304,10 @@ class DynamicMessage final : public Message {
   // class's memory is allocated via the global operator new. Thus, we need to
   // manually call the global operator delete. Calling the destructor is taken
   // care of for us. This makes DynamicMessage compatible with -fsized-delete.
-  // It doesn't work for MSVC though.
-#ifndef _MSC_VER
+  // Working in MSVC 19.30+ (MSVS 2022), may not work in old versions though.
+#if !defined(_MSC_VER) || (_MSC_VER >= 1930)
   static void operator delete(void* ptr) { ::operator delete(ptr); }
-#endif  // !_MSC_VER
+#endif  // !defined(_MSC_VER) || (_MSC_VER >= 1930)
 #endif
 
  private:

src/google/protobuf/extension_set.cc

@@ -1654,7 +1654,8 @@ void ExtensionSet::Extension::Free() {
         if (is_lazy) {
           delete ptr.lazymessage_value;
         } else {
-          delete ptr.message_value;
+          ptr.message_value->~MessageLite();
+          ::operator delete(ptr.message_value);
         }
         break;
       default: