Atom: --harmony flag exposes bug in Chromium 53 currently in Atom Beta

[lee-dohm]

Prerequisites

• [x] Can you reproduce the problem in safe mode?
• [x] Are you running the latest version of Atom?
• [x] Did you check the debugging guide?
• [x] Did you check the FAQs on Discuss?
• [x] Are you reporting to the correct repository?
• [x] Did you perform a cursory search to see if your bug or enhancement is already reported?

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Description

[Description of the bug or feature]

Steps to Reproduce

Sample code

Expected behavior: No exception is thrown

Actual behavior: Exception is thrown as stated in the Gist

Versions

Atom    : 1.12.0-beta4
Electron: 1.3.6
Chrome  : 52.0.2743.82
Node    : 6.3.0

apm  1.12.5
npm  3.10.5
node 4.4.5
python 2.7.12
git 2.10.1

Relevant Links

• https://bugs.chromium.org/p/v8/issues/detail?id=5322
  

  Possible Fix

Commenting out this line appears to solve the problem.

/cc @zertosh for tracking

[zertosh]

FYI: @jgebhardt @mostafaeweda @nmote

[nathansobo]

Yeah, we should definitely be able to drop --harmony. It's been around for a long time to enable Map and friends. Shouldn't be needed now.

[lock[bot]]

This issue has been automatically locked since there has not been any recent activity after it was closed. If you can still reproduce this issue in Safe Mode then please open a new issue and fill out the entire issue template to ensure that we have enough information to address your issue. Thanks!