Convert the typing handler to async/await.

[clokep]

There's a couple of odd methods in here, in particular:

• _stopped_typing was yielded, but wasn't a Deferred.
• get_new_events doesn't need to be a coroutine, but I think it expects to be one based on the callers.
• get_success need to be used in tests instead of getSuccessOf for old deps, I think.

[richvdh]

these aren't quite the same thing. successResultOf asserts that the thing has already completed; get_success does not do that. I think tests.test_utils.get_awaitable_result should do what you want here.

That said, it probably doesn't matter here.

[clokep]

get_success seems to just handle if it is an awaitable, wrap it in a ensureDeferred and then call successResultOf:

synapse/tests/unittest.py

Lines 443 to 449 in 0361932

	def get_success(self, d, by=0.0):
	if inspect.isawaitable(d):
	d = ensureDeferred(d)
	if not isinstance(d, Deferred):
	return d
	self.pump(by=by)
	return self.successResultOf(d)

So I think it does the same thing?

[richvdh]

The difference is the self.pump.

[richvdh]

lgtm!