Make pulling both events from the stream more explicit and
ensure that different errors appear when each event doesn't
arrive in time.
There are several issues with the previous approach:
- `.skip(1)` actually returns a new stream that will skip the
first event.
- Calling `.timeout()` on the new stream returns yet another
stream with the timeout.
- It appeared like each event should have a timeout but the
ordering means both the skip and first event actually shared
a single timeout.
Change-Id: I60062634a35424455c03b6e1778cc56bbdeb1716
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/294080
Reviewed-by: Mark Zhou <markzipan@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Nicholas Shahan
d869fe93e2