esm: fix esm load bug

Fixes: nodejs/node#25482

PR-URL: nodejs/node#25491
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

lib/internal/modules/cjs/loader.js

@@ -660,10 +660,12 @@ Module.prototype.load = function(filename) {
     const module = ESMLoader.moduleMap.get(url);
     // create module entry at load time to snapshot exports correctly
     const exports = this.exports;
-    if (module !== undefined) { // called from cjs translator
-      module.reflect.onReady((reflect) => {
-        reflect.exports.default.set(exports);
-      });
+    if (module !== undefined) { // Called from cjs translator
+      if (module.reflect) {
+        module.reflect.onReady((reflect) => {
+          reflect.exports.default.set(exports);
+        });
+      }
     } else { // preemptively cache
       ESMLoader.moduleMap.set(
         url,