Hi all,

You may have noticed jstests.py take much longer to run now.

This is a good thing, as we recently landed bug 977849 [2], which imports
test262, the ECMAScript conformance suite, into js/src/tests/test262. This
enables jstests.py to run test262 as part of our other tests both locally
and in continuous integration. It is an important milestone for fixing and
preventing regressions of correctness bugs.

Note that since js/src/tests/test262 is imported from the main test262 repo
[1], please do not edit in or commit new tests to that directory.

The current plan is to do manual monthly syncs with upstream.

I also encourage engine hackers who fix correctness bugs to upstream
test262 tests if that bug is not yet covered upstream.

Mad props to :anba and :evilpie for doing most of the hard work.

[1] https://github.com/tc39/test262
[2] https://bugzilla.mozilla.org/show_bug.cgi?id=977849

-- 
       shu
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