src: use MaybeLocal.ToLocal instead of IsEmpty

This commit suggest using MaybeLocal.ToLocal and passing in the
Local<Function> fn.

The motivation for doing this is that the following
MaybeLocal.ToLocalChecked call can then be avoided.

PR-URL: #33312
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: danbev

src/node.cc

@@ -171,11 +171,11 @@ MaybeLocal<Value> ExecuteBootstrapper(Environment* env,
   MaybeLocal<Function> maybe_fn =
       NativeModuleEnv::LookupAndCompile(env->context(), id, parameters, env);
 
-  if (maybe_fn.IsEmpty()) {
+  Local<Function> fn;
+  if (!maybe_fn.ToLocal(&fn)) {
     return MaybeLocal<Value>();
   }
 
-  Local<Function> fn = maybe_fn.ToLocalChecked();
   MaybeLocal<Value> result = fn->Call(env->context(),
                                       Undefined(env->isolate()),
                                       arguments->size(),