runtime::MainWorker::execute_script support return value

[gofenix]

Now, the execute_script:

  /// See [JsRuntime::execute_script](deno_core::JsRuntime::execute_script)
  pub fn execute_script(
    &mut self,
    script_name: &str,
    source_code: &str,
  ) -> Result<(), AnyError> {
    self.js_runtime.execute_script(script_name, source_code)?;
    Ok(())
  }

I want to get the value from execute_script function. Maybe we could add a function like this:

  pub fn execute_script_with_return(
    &mut self,
    script_name: &str,
    source_code: &str,
  ) -> Result<v8::Global<v8::Value>, AnyError> {
    self.js_runtime.execute_script(script_name, source_code)
  }

Then:

// other code

let res = worker.execute_script_with_return(
    "test",
    r#"
    console.log("123");
    console.log(Deno);
    1+1;
  "#,
  );

  let v1 = res.unwrap().into_raw();

  unsafe {
    // Create a new Isolate and make it the current one.
    let isolate = &mut v8::Isolate::new(v8::CreateParams::default());

    // Create a stack-allocated handle scope.
    let handle_scope = &mut v8::HandleScope::new(isolate);

    // Create a new context.
    let context = v8::Context::new(handle_scope);

    // Enter the context for compiling and running the hello world script.
    let scope = &mut v8::ContextScope::new(handle_scope, context);

    println!("{:?}", v1.as_ref().to_string(scope).unwrap().to_rust_string_lossy(scope));
  }

// other code

[bartlomieju]

Seems reasonable, PRs are welcome