src: use MaybeLocal.ToLocal instead of IsEmpty

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

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

PR-URL: https://github.com/nodejs/node/pull/33457
Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>

src/node_native_module.cc

@@ -292,14 +292,14 @@ MaybeLocal<Function> NativeModuleLoader::LookupAndCompile(
 
   // This could fail when there are early errors in the native modules,
   // e.g. the syntax errors
-  if (maybe_fun.IsEmpty()) {
+  Local<Function> fun;
+  if (!maybe_fun.ToLocal(&fun)) {
     // In the case of early errors, v8 is already capable of
     // decorating the stack for us - note that we use CompileFunctionInContext
     // so there is no need to worry about wrappers.
     return MaybeLocal<Function>();
   }
 
-  Local<Function> fun = maybe_fun.ToLocalChecked();
   // XXX(joyeecheung): this bookkeeping is not exactly accurate because
   // it only starts after the Environment is created, so the per_context.js
   // will never be in any of these two sets, but the two sets are only for