Allow continuing from assertStoppedLocation

I'm struggling to find a way to assert that the debugger stops on an exception and writes to stderr when continued. Here's what I want to write:

await Promise.all([
	dc.configurationSequence(),
	dc.launch(config),
	dc.assertOutput("stderr", "Test failed. See exception logs above."),
	dc.assertStoppedLocation("exception", {
		line: positionOf("// EXCEPTION").line,
		path: flutterTestBrokenFile.fsPath,
	}),
]);

The problem is, the stderr is only written after the user hits continue. I thought I just chain a .then((_) => dc.continueRequest(...) request onto the end of the the assertStoppedLocation but it needs a threadId which is used inside assertStoppedLocation but not exposed in any way.

Is it possible to add an option to allow assertStoppedLocation to resume (or exposed the thread ID, but that may be tricky since it's returning a StackTrace response which doesn't contain it).

Start with the assertStoppedLocation entry point and the continueRequest call described in the issue, tracing how the thread ID is obtained and whether related test helpers cover continuation. Done means a test can assert the exception stop, resume execution, and then verify the expected stderr output.