Run callback passed to napi_module_register after dlopen returns instead of during call (#20478)

test/napi/napi-app/constructor_order_addon.cpp

@@ -0,0 +1,44 @@
+#include <js_native_api.h>
+#include <node_api.h>
+#include <stdio.h>
+
+napi_value register_cb(napi_env env, napi_value exports);
+
+static napi_module mod = {
+    1,                           // nm_version
+    0,                           // nm_flags
+    "constructor_order_addon.c", // nm_filename
+    register_cb,                 // nm_register_func
+    "constructor_order_addon",   // nm_modname
+    NULL,                        // nm_priv
+    {NULL}                       // reserved
+};
+
+class call_register {
+public:
+  call_register() {
+    // should be called first during dlopen
+    printf("call_register\n");
+    napi_module_register(&mod);
+  }
+};
+
+class init_static {
+public:
+  init_static() {
+    // should be called second during dlopen
+    printf("init_static\n");
+  }
+};
+
+// declare these so their constructors run
+static call_register constructor1;
+static init_static constructor2;
+
+napi_value register_cb(napi_env env, napi_value exports) {
+  // should be called third, after dlopen returns and bun runs the callback
+  // passed to napi_module_register
+  (void)env;
+  printf("register_cb\n");
+  return exports;
+}