worker: heap profile optimizations

PR-URL: #62201
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: theanarkh <theratliter@gmail.com>
Reviewed-By: Gürgün Dayıoğlu <hey@gurgun.day>

Author: IlyasShabi

src/node_worker.cc

@@ -1121,7 +1121,8 @@ static bool serializeProfile(Isolate* isolate, std::ostringstream& out_stream) {
   if (!profile) {
     return false;
   }
-  JSONWriter writer(out_stream, false);
+  profiler->StopSamplingHeapProfiler();
+  JSONWriter writer(out_stream, true);
   writer.json_start();
 
   writer.json_arraystart("samples");
@@ -1139,7 +1140,6 @@ static bool serializeProfile(Isolate* isolate, std::ostringstream& out_stream) {
   writer.json_objectend();
 
   writer.json_end();
-  profiler->StopSamplingHeapProfiler();
   return true;
 }