1425305 - [Meta] Fail tests in case of unexpected TypeError, ReferenceError, SyntaxError

Status: NEW

(Testing :: General, enhancement, P2)

Description

[David Teller [:Yoric] - still alive but not very active]

Bug 1409852 introduces a mechanism to detect instances of TypeError, ReferenceError or SyntaxError in our code. We now need to take advantage of this to clean up existing errors and make sure that they do not regress.

Comment 1

[Andrew Halberstadt [:ahal]]

Here is a try run showing unexpected failures enabled on browser-chrome and xpcshell:
https://treeherder.mozilla.org/jobs?repo=try&revision=5001964eda3c8713c4c63ca63741049f71904813

We'll need to figure out how to ignore pre-existing failures so that we can prevent future ones. This is on releng's radar, but there is no timeline at this moment.

Comment 2

[Andrew Halberstadt [:ahal]]

Back from leave, just noting this is still important but unsure when it can get prioritized by releng.