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Michael Achenbach 2d79d2c3a7 Revert "[async-iteration] implement spec-change to yield in async generators" 
This reverts commit 409f84c93b.

Reason for revert: Breaks nosnap debug:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug/builds/14288

Original change's description:
> [async-iteration] implement spec-change to `yield` in async generators
> 
> Per https://github.com/tc39/proposal-async-iteration/pull/102/files:
> 
> AsyncGeneratorResolve no longer unwraps a value component. Instead, the
> value is unwrapped before the builtin call via Await, allowing Promise
> rejections to affect the generator control flow.
> 
> Thus, all `yield <expr>` implicitly become `yield await <expr>`.
> 
> Additionally, `return <expr>` becomes `return await <expr>`. Finally, when
> the generator is resumed with `.return()`, the parameter passed to .return()
> is awaited before generator execution properly continues).
> 
> BUG=v8:5855
> R=​littledan@chromium.org, neis@chromium.org, adamk@chromium.org
> 
> Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
> Change-Id: Ife084076c3ed434b5467e6aeba14082f8b410ad5
> Reviewed-on: https://chromium-review.googlesource.com/523844
> Commit-Queue: Caitlin Potter <caitp@igalia.com>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47011}

TBR=rmcilroy@chromium.org,adamk@chromium.org,yangguo@chromium.org,neis@chromium.org,littledan@chromium.org,gsathya@chromium.org,caitp@igalia.com

Change-Id: Ie6ad7e5410a3a89aab7a5dc68de36eb27b9354fe
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:5855
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/593952
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47013}
2017-07-31 15:23:56 +00:00
..
local-tests/test [collections] Port Map constructor to CSA 2017-05-23 13:21:47 +00:00
archive.py Reland of [test] Speculatively remove local-tests from archive (patchset #1 id:1 of https://codereview.chromium.org/2640223003/ ) 2017-02-28 14:43:15 +00:00
BUILD.gn [gn] Port test262 archiving to gn 2016-06-06 08:56:58 +00:00
detachArrayBuffer.js test262 roll 2017-03-13 14:33:07 +00:00
harness-adapt.js test262 roll 2017-03-13 14:33:07 +00:00
harness-agent.js Make test262 agent more strict in broadcast/report 2017-07-07 21:38:31 +00:00
list.py test262 roll 2017-03-13 14:33:07 +00:00
prune-local-tests.sh test262 roll 2017-02-10 19:05:55 +00:00
README Make test262 README file revision independent. 2015-11-04 10:52:44 +00:00
test262.gyp test262 roll 2016-10-20 10:29:28 +00:00
test262.isolate Reland of [test] Speculatively remove local-tests from archive (patchset #1 id:1 of https://codereview.chromium.org/2640223003/ ) 2017-02-28 14:43:15 +00:00
test262.status Revert "[async-iteration] implement spec-change to yield in async generators" 2017-07-31 15:23:56 +00:00
testcfg.py Ship RegExp dotAll mode / s flag 2017-07-28 08:17:38 +00:00
upstream-local-tests.sh test262 roll 2017-03-13 14:33:07 +00:00

README 

This directory contains code for binding the test262 test suite
into the v8 test harness. The tests are checked out as a dependency from

  https://chromium.googlesource.com/external/github.com/tc39/test262

at a revision specified in the DEPS file as 'data' in this directory. They are
fetched with 'gclient sync'. To update to a newer version, please change the
DEPS file.

Using a newer version, e.g. 'deadbeef' may be possible but the tests are only
known to pass (and indeed run) with the DEPS revision. Example:

  cd data
  git fetch
  git checkout deadbeef

If you do update to a newer revision you may have to change the test
harness adapter code since it uses internal functionality from the
harness that comes bundled with the tests.  You will most likely also
have to update the test expectation file.