Function async_to_generator

pub fn async_to_generator(c: Config, unresolved_mark: Mark) -> impl Pass

@babel/plugin-transform-async-to-generator

In

async function foo() {
  await bar();
}

Out

var _async_to_generator = function (fn) {
  ...
};
var foo = _async_to_generator(function* () {
  yield bar();
});