fix(zone.js): only one listener should also throw an error

[JiaLiPassion]

Close #41867

In the previous commit #41562 (comment),
the error thrown in the event listener will be caught and re-thrown, but there is a bug
in the commit, if there is only one listener for the specified event name, the error
will not be re-thrown, so this commit fixes the issue and make sure the error is re-thrown.

[jessicajaniuk]

There seems to be a few legit failures in Google3 related to this change where we see this:

Error: Uncaught (in promise): Object: {"error":"unexpected error"}
and
Error: Uncaught (in promise): TypeError: Cannot read property 'pipe' of undefined

[JiaLiPassion]

@jessicajaniuk, I updated the PR and keep the behavior compatible, could you re-run the presubmit? Thank you.

[jessicajaniuk]

@JiaLiPassion We're unfortunately still seeing the exact same failing tests.

[jessicajaniuk]

@JiaLiPassion I'll try to put a stackblitz together for you to see an example of the tests.

[JiaLiPassion]

@jessicajaniuk , got it, thank you!

[br-star]

Hi folks, how is the progress going on this?

[jessicajaniuk]

@br-star We're seeing issues within Google3 with this change. So it's still being iterated on. There's also a big timezone difference between contributors. So we thank you for your patience.

[br-star]

Any update? We're having to manually cherrypick the revert CL to our rapid prod branch as a workaround.

[jessicajaniuk]

We talked off github, but just for visibility, @br-star is going to create a stackblitz for this issue.

[AndrewKushnir]

Thanks for the fix @JiaLiPassion. I've left a couple comments, could you please have a look when you get a chance?

We are also investigating the issues in Google's codebase related to this fix (it looks like some errors where not re-thrown and silently ignored) and will share more info soon.

[petebacondarwin]

Reviewed-for: size-tracking

[alxhub]

This LGTM as a fix, though I second @AndrewKushnir's desire for some additional type info within the larger system here.

[AndrewKushnir]

Getting ready for landing this PR:

• cleanup in Google's codebase is nearing completion
• I've rebased this PR to rerun CI
• new presubmit was started
• global presubmit was also started

Thank you.

[AndrewKushnir]

Reviewed-for: size-tracking

[petebacondarwin]

Reviewed-for: size-tracking

[jessicajaniuk]

LGTM 🍪

Thanks, @JiaLiPassion, for your work on this.

reviewed-for: size-tracking

[AndrewKushnir]

Just a quick comment as a wrap up: this change was merged and synced into Google's codebase. Google's codebase required a sizable amount of cleanup work since the change that introduced the problem became available in g3 immediately after the sync (on Apr 21), thus there was a number of regressed targets. This problem does not seem to affect users externally since the latest ZoneJS package release (0.11.4) happened mid Feb, so the code that had the bug was not released publicly yet and the next ZoneJS release will have the fix as well.

Thanks everyone for helping with this fix! 👍

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