src: initialize fields accessed by AsyncHooks before AsyncHooks

PR-URL: #48566

src/env.h

@@ -1015,6 +1015,10 @@ class Environment : public MemoryRetainer {
   uv_async_t task_queues_async_;
   int64_t task_queues_async_refs_ = 0;
 
+  // These are read by the AsyncHooks ctor and need to be listed before async_hooks_.
+  std::atomic_bool is_stopping_{false};
+  std::atomic_bool can_call_into_js_{true};
+
   AsyncHooks async_hooks_;
   ImmediateInfo immediate_info_;
   AliasedInt32Array timeout_info_;
@@ -1092,7 +1096,6 @@ class Environment : public MemoryRetainer {
 
   bool has_serialized_options_ = false;
 
-  std::atomic_bool can_call_into_js_ { true };
   uint64_t flags_;
   uint64_t thread_id_;
   std::unordered_set<worker::Worker*> sub_worker_contexts_;
@@ -1150,8 +1153,6 @@ class Environment : public MemoryRetainer {
   CleanupQueue cleanup_queue_;
   bool started_cleanup_ = false;
 
-  std::atomic_bool is_stopping_ { false };
-
   std::unordered_set<int> unmanaged_fds_;
 
   std::function<void(Environment*, ExitCode)> process_exit_handler_{