suggestion: parallel: boolean option for Deno.serve()

[iuioiua]

Would work the same as deno serve --parallel and be false by default.

- Deno.serve((_req) => new Response("Hello, world"));
+ Deno.serve({ parallel: true }, (_req) => new Response("Hello, world"));

[lucacasonato]

I don't see how this works. We can't fork JS execution when we hit a Deno.serve() with parellel: true. It'd have to be deno run --parallel.

[bartlomieju]

Closing as adding parallel option is not feasible here. I'd rather explore adding deno run --parallel as suggested by Luca.