Martin Kustermann
673eb56471
This CL brings us on-par with the VM implementation in terms of tests.
* Ensure we have saved-try-ctx/exception/stacktrace variables hoisted out for
try-catch **and** try-finally.
* Instead of closing the stream controller for 'async*' functions on return we
do it inside an try-finally block so we get there in terms of normal and
exceptional exit.
R=vegorov@google.com
Review-Url: https://codereview.chromium.org/2627873002 .